Build dynamic iOS SDK.

- Places most ObjC code into webrtc/sdk/objc instead.
- New gyp targets to build, strip and export symbols for dylib.
- Removes old script used to generate dylib.

BUG=

Review URL: https://codereview.webrtc.org/1903663002

Cr-Commit-Position: refs/heads/master@{#12524}
diff --git a/webrtc/sdk/objc/Framework/UnitTests/RTCIceServerTest.mm b/webrtc/sdk/objc/Framework/UnitTests/RTCIceServerTest.mm
new file mode 100644
index 0000000..a5159dc
--- /dev/null
+++ b/webrtc/sdk/objc/Framework/UnitTests/RTCIceServerTest.mm
@@ -0,0 +1,108 @@
+/*
+ *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#import <Foundation/Foundation.h>
+
+#include <vector>
+
+#include "webrtc/base/gunit.h"
+
+#import "NSString+StdString.h"
+#import "RTCIceServer+Private.h"
+#import "WebRTC/RTCIceServer.h"
+
+@interface RTCIceServerTest : NSObject
+- (void)testOneURLServer;
+- (void)testTwoURLServer;
+- (void)testPasswordCredential;
+- (void)testInitFromNativeServer;
+@end
+
+@implementation RTCIceServerTest
+
+- (void)testOneURLServer {
+  RTCIceServer *server = [[RTCIceServer alloc] initWithURLStrings:@[
+      @"stun:stun1.example.net" ]];
+
+  webrtc::PeerConnectionInterface::IceServer iceStruct = server.nativeServer;
+  EXPECT_EQ(1u, iceStruct.urls.size());
+  EXPECT_EQ("stun:stun1.example.net", iceStruct.urls.front());
+  EXPECT_EQ("", iceStruct.username);
+  EXPECT_EQ("", iceStruct.password);
+}
+
+- (void)testTwoURLServer {
+  RTCIceServer *server = [[RTCIceServer alloc] initWithURLStrings:@[
+      @"turn1:turn1.example.net", @"turn2:turn2.example.net" ]];
+
+  webrtc::PeerConnectionInterface::IceServer iceStruct = server.nativeServer;
+  EXPECT_EQ(2u, iceStruct.urls.size());
+  EXPECT_EQ("turn1:turn1.example.net", iceStruct.urls.front());
+  EXPECT_EQ("turn2:turn2.example.net", iceStruct.urls.back());
+  EXPECT_EQ("", iceStruct.username);
+  EXPECT_EQ("", iceStruct.password);
+}
+
+- (void)testPasswordCredential {
+  RTCIceServer *server = [[RTCIceServer alloc]
+      initWithURLStrings:@[ @"turn1:turn1.example.net" ]
+                username:@"username"
+              credential:@"credential"];
+  webrtc::PeerConnectionInterface::IceServer iceStruct = server.nativeServer;
+  EXPECT_EQ(1u, iceStruct.urls.size());
+  EXPECT_EQ("turn1:turn1.example.net", iceStruct.urls.front());
+  EXPECT_EQ("username", iceStruct.username);
+  EXPECT_EQ("credential", iceStruct.password);
+}
+
+- (void)testInitFromNativeServer {
+  webrtc::PeerConnectionInterface::IceServer nativeServer;
+  nativeServer.username = "username";
+  nativeServer.password = "password";
+  nativeServer.urls.push_back("stun:stun.example.net");
+
+  RTCIceServer *iceServer =
+      [[RTCIceServer alloc] initWithNativeServer:nativeServer];
+  EXPECT_EQ(1u, iceServer.urlStrings.count);
+  EXPECT_EQ("stun:stun.example.net",
+      [NSString stdStringForString:iceServer.urlStrings.firstObject]);
+  EXPECT_EQ("username", [NSString stdStringForString:iceServer.username]);
+  EXPECT_EQ("password", [NSString stdStringForString:iceServer.credential]);
+}
+
+@end
+
+TEST(RTCIceServerTest, OneURLTest) {
+  @autoreleasepool {
+    RTCIceServerTest *test = [[RTCIceServerTest alloc] init];
+    [test testOneURLServer];
+  }
+}
+
+TEST(RTCIceServerTest, TwoURLTest) {
+  @autoreleasepool {
+    RTCIceServerTest *test = [[RTCIceServerTest alloc] init];
+    [test testTwoURLServer];
+  }
+}
+
+TEST(RTCIceServerTest, PasswordCredentialTest) {
+  @autoreleasepool {
+    RTCIceServerTest *test = [[RTCIceServerTest alloc] init];
+    [test testPasswordCredential];
+  }
+}
+
+TEST(RTCIceServerTest, InitFromNativeServerTest) {
+  @autoreleasepool {
+    RTCIceServerTest *test = [[RTCIceServerTest alloc] init];
+    [test testInitFromNativeServer];
+  }
+}