Add prefix to codec name constants.

Bug: webrtc:8401
Change-Id: I8cd4685df3609e8b91a79b19789aadef484138d4
Reviewed-on: https://webrtc-review.googlesource.com/14140
Reviewed-by: Peter Hanspers <peterhanspers@webrtc.org>
Commit-Queue: Kári Helgason <kthelgason@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20390}
diff --git a/examples/objc/AppRTCMobile/ARDVideoEncoderFactory.m b/examples/objc/AppRTCMobile/ARDVideoEncoderFactory.m
index b1163c4..d6ca592 100644
--- a/examples/objc/AppRTCMobile/ARDVideoEncoderFactory.m
+++ b/examples/objc/AppRTCMobile/ARDVideoEncoderFactory.m
@@ -21,11 +21,11 @@
 @synthesize preferredCodec;
 
 - (id<RTCVideoEncoder>)createEncoder:(RTCVideoCodecInfo *)info {
-  if ([info.name isEqualToString:kVideoCodecH264Name]) {
+  if ([info.name isEqualToString:kRTCVideoCodecH264Name]) {
     return [[RTCVideoEncoderH264 alloc] initWithCodecInfo:info];
-  } else if ([info.name isEqualToString:kVideoCodecVp8Name]) {
+  } else if ([info.name isEqualToString:kRTCVideoCodecVp8Name]) {
     return [RTCVideoEncoderVP8 vp8Encoder];
-  } else if ([info.name isEqualToString:kVideoCodecVp9Name]) {
+  } else if ([info.name isEqualToString:kRTCVideoCodecVp9Name]) {
     return [RTCVideoEncoderVP9 vp9Encoder];
   }
 
@@ -36,30 +36,31 @@
   NSMutableArray<RTCVideoCodecInfo *> *codecs = [NSMutableArray array];
 
   NSDictionary<NSString *, NSString *> *constrainedHighParams = @{
-    @"profile-level-id" : kLevel31ConstrainedHigh,
+    @"profile-level-id" : kRTCLevel31ConstrainedHigh,
     @"level-asymmetry-allowed" : @"1",
     @"packetization-mode" : @"1",
   };
   RTCVideoCodecInfo *constrainedHighInfo =
-      [[RTCVideoCodecInfo alloc] initWithName:kVideoCodecH264Name parameters:constrainedHighParams];
+      [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecH264Name
+                                   parameters:constrainedHighParams];
   [codecs addObject:constrainedHighInfo];
 
   NSDictionary<NSString *, NSString *> *constrainedBaselineParams = @{
-    @"profile-level-id" : kLevel31ConstrainedBaseline,
+    @"profile-level-id" : kRTCLevel31ConstrainedBaseline,
     @"level-asymmetry-allowed" : @"1",
     @"packetization-mode" : @"1",
   };
   RTCVideoCodecInfo *constrainedBaselineInfo =
-      [[RTCVideoCodecInfo alloc] initWithName:kVideoCodecH264Name
+      [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecH264Name
                                    parameters:constrainedBaselineParams];
   [codecs addObject:constrainedBaselineInfo];
 
   RTCVideoCodecInfo *vp8Info =
-      [[RTCVideoCodecInfo alloc] initWithName:kVideoCodecVp8Name parameters:nil];
+      [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecVp8Name parameters:nil];
   [codecs addObject:vp8Info];
 
   RTCVideoCodecInfo *vp9Info =
-      [[RTCVideoCodecInfo alloc] initWithName:kVideoCodecVp9Name parameters:nil];
+      [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecVp9Name parameters:nil];
   [codecs addObject:vp9Info];
 
   NSMutableArray<RTCVideoCodecInfo *> *orderedCodecs = [NSMutableArray array];