Moving src/webrtc into src/.

In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}

examples/objc/AppRTCMobile/ARDAppClient.h

@@ -0,0 +1,80 @@
+/*
+ *  Copyright 2014 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>
+
+#import "WebRTC/RTCCameraVideoCapturer.h"
+#import "WebRTC/RTCPeerConnection.h"
+#import "WebRTC/RTCVideoTrack.h"
+
+typedef NS_ENUM(NSInteger, ARDAppClientState) {
+  // Disconnected from servers.
+  kARDAppClientStateDisconnected,
+  // Connecting to servers.
+  kARDAppClientStateConnecting,
+  // Connected to servers.
+  kARDAppClientStateConnected,
+};
+
+@class ARDAppClient;
+@class ARDSettingsModel;
+@class RTCMediaConstraints;
+
+// The delegate is informed of pertinent events and will be called on the
+// main queue.
+@protocol ARDAppClientDelegate <NSObject>
+
+- (void)appClient:(ARDAppClient *)client
+    didChangeState:(ARDAppClientState)state;
+
+- (void)appClient:(ARDAppClient *)client
+    didChangeConnectionState:(RTCIceConnectionState)state;
+
+- (void)appClient:(ARDAppClient *)client
+    didCreateLocalCapturer:(RTCCameraVideoCapturer *)localCapturer;
+
+- (void)appClient:(ARDAppClient *)client
+    didReceiveLocalVideoTrack:(RTCVideoTrack *)localVideoTrack;
+
+- (void)appClient:(ARDAppClient *)client
+    didReceiveRemoteVideoTrack:(RTCVideoTrack *)remoteVideoTrack;
+
+- (void)appClient:(ARDAppClient *)client
+         didError:(NSError *)error;
+
+- (void)appClient:(ARDAppClient *)client
+      didGetStats:(NSArray *)stats;
+
+@end
+
+// Handles connections to the AppRTC server for a given room. Methods on this
+// class should only be called from the main queue.
+@interface ARDAppClient : NSObject
+
+// If |shouldGetStats| is true, stats will be reported in 1s intervals through
+// the delegate.
+@property(nonatomic, assign) BOOL shouldGetStats;
+@property(nonatomic, readonly) ARDAppClientState state;
+@property(nonatomic, weak) id<ARDAppClientDelegate> delegate;
+// Convenience constructor since all expected use cases will need a delegate
+// in order to receive remote tracks.
+- (instancetype)initWithDelegate:(id<ARDAppClientDelegate>)delegate;
+
+// Establishes a connection with the AppRTC servers for the given room id.
+// |settings| is an object containing settings such as video codec for the call.
+// If |isLoopback| is true, the call will connect to itself.
+- (void)connectToRoomWithId:(NSString *)roomId
+                   settings:(ARDSettingsModel *)settings
+                 isLoopback:(BOOL)isLoopback;
+
+// Disconnects from the AppRTC servers and any connected clients.
+- (void)disconnect;
+
+@end