iOS: Move AppRTC logging methods to public headers.

BUG=

Review URL: https://codereview.webrtc.org/1241283004

Cr-Commit-Position: refs/heads/master@{#9629}
diff --git a/talk/examples/objc/AppRTCDemo/common/ARDLogging.h b/talk/examples/objc/AppRTCDemo/common/ARDLogging.h
deleted file mode 100644
index dfb31d8..0000000
--- a/talk/examples/objc/AppRTCDemo/common/ARDLogging.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * libjingle
- * Copyright 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#import <Foundation/Foundation.h>
-
-// We route all logging through the WebRTC logger. By doing this we will get
-// both app and WebRTC logs in the same place, which we can then route to a
-// file if we need to. A side effect of this is that we get severity for free.
-typedef NS_ENUM(NSInteger, ARDLogSeverity) {
-  kARDLogSeverityVerbose,
-  kARDLogSeverityInfo,
-  kARDLogSeverityWarning,
-  kARDLogSeverityError,
-};
-
-#if defined(__cplusplus)
-extern "C" void ARDLogToWebRTCLogger(ARDLogSeverity severity,
-                                     NSString *logString);
-extern "C" NSString *ARDFileName(const char *filePath);
-extern "C" void ARDLogInit();
-#else
-// Logs |logString| to the WebRTC logger at the given severity.
-extern void ARDLogToWebRTCLogger(ARDLogSeverity severity, NSString *logString);
-// Returns the filename with the path prefix removed.
-extern NSString *ARDFileName(const char *filePath);
-// Initializes the correct logging levels. This should be called once on app
-// startup.
-extern void ARDLogInit();
-#endif
-
-#define ARDLogString(format, ...)                    \
-  [NSString stringWithFormat:@"(%@:%d %s): " format, \
-      ARDFileName(__FILE__),                         \
-      __LINE__,                                      \
-      __FUNCTION__,                                  \
-      ##__VA_ARGS__]
-
-#define ARDLogEx(severity, format, ...)                        \
-  do {                                                         \
-    NSString *logString = ARDLogString(format, ##__VA_ARGS__); \
-    ARDLogToWebRTCLogger(severity, logString);                 \
-  } while (false)
-
-#define ARDLogVerbose(format, ...)                        \
-  ARDLogEx(kARDLogSeverityVerbose, format, ##__VA_ARGS__) \
-
-#define ARDLogInfo(format, ...)                           \
-  ARDLogEx(kARDLogSeverityInfo, format, ##__VA_ARGS__)    \
-
-#define ARDLogWarning(format, ...)                        \
-  ARDLogEx(kARDLogSeverityWarning, format, ##__VA_ARGS__) \
-
-#define ARDLogError(format, ...)                          \
-  ARDLogEx(kARDLogSeverityError, format, ##__VA_ARGS__)   \
-
-#ifdef _DEBUG
-#define ARDLogDebug(format, ...) ARDLogInfo(format, ##__VA_ARGS__)
-#else
-#define ARDLogDebug(format, ...) \
-  do {                           \
-  } while (false)
-#endif
-
-#define ARDLog(format, ...) ARDLogInfo(format, ##__VA_ARGS__)
diff --git a/talk/examples/objc/AppRTCDemo/common/ARDLogging.mm b/talk/examples/objc/AppRTCDemo/common/ARDLogging.mm
deleted file mode 100644
index 7bd773d..0000000
--- a/talk/examples/objc/AppRTCDemo/common/ARDLogging.mm
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * libjingle
- * Copyright 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#import "ARDLogging.h"
-
-#include "webrtc/base/logging.h"
-
-void ARDLogInit() {
-#ifndef _DEBUG
-  // In debug builds the default level is LS_INFO and in non-debug builds it is
-  // disabled. Continue to log to console in non-debug builds, but only
-  // warnings and errors.
-  rtc::LogMessage::LogToDebug(rtc::LS_WARNING);
-#endif
-}
-
-void ARDLogToWebRTCLogger(ARDLogSeverity severity, NSString *logString) {
-  if (logString.length) {
-    const char* utf8String = logString.UTF8String;
-    switch (severity) {
-      case kARDLogSeverityVerbose:
-        LOG(LS_VERBOSE) << utf8String;
-        break;
-      case kARDLogSeverityInfo:
-        LOG(LS_INFO) << utf8String;
-        break;
-      case kARDLogSeverityWarning:
-        LOG(LS_WARNING) << utf8String;
-        break;
-      case kARDLogSeverityError:
-        LOG(LS_ERROR) << utf8String;
-        break;
-    }
-  }
-}
-
-NSString *ARDFileName(const char *filePath) {
-  NSString *nsFilePath =
-      [[NSString alloc] initWithBytesNoCopy:const_cast<char *>(filePath)
-                                     length:strlen(filePath)
-                                   encoding:NSUTF8StringEncoding
-                               freeWhenDone:NO];
-  return nsFilePath.lastPathComponent;
-}
diff --git a/talk/examples/objc/AppRTCDemo/common/ARDUtilities.m b/talk/examples/objc/AppRTCDemo/common/ARDUtilities.m
index 066ee02..39010da 100644
--- a/talk/examples/objc/AppRTCDemo/common/ARDUtilities.m
+++ b/talk/examples/objc/AppRTCDemo/common/ARDUtilities.m
@@ -25,9 +25,10 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#import "ARDLogging.h"
 #import "ARDUtilities.h"
 
+#import "RTCLogging.h"
+
 @implementation NSDictionary (ARDUtilites)
 
 + (NSDictionary *)dictionaryWithJSONString:(NSString *)jsonString {
@@ -37,7 +38,7 @@
   NSDictionary *dict =
       [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
   if (error) {
-    ARDLog(@"Error parsing JSON: %@", error.localizedDescription);
+    RTCLogError(@"Error parsing JSON: %@", error.localizedDescription);
   }
   return dict;
 }
@@ -47,7 +48,7 @@
   NSDictionary *dict =
       [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];
   if (error) {
-    ARDLog(@"Error parsing JSON: %@", error.localizedDescription);
+    RTCLogError(@"Error parsing JSON: %@", error.localizedDescription);
   }
   return dict;
 }
@@ -85,7 +86,7 @@
                                     NSData *data,
                                     NSError *error) {
     if (error) {
-      ARDLog(@"Error posting data: %@", error.localizedDescription);
+      RTCLogError(@"Error posting data: %@", error.localizedDescription);
       if (completionHandler) {
         completionHandler(NO, data);
       }
@@ -96,7 +97,7 @@
       NSString *serverResponse = data.length > 0 ?
           [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] :
           nil;
-      ARDLog(@"Received bad response: %@", serverResponse);
+      RTCLogError(@"Received bad response: %@", serverResponse);
       if (completionHandler) {
         completionHandler(NO, data);
       }