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}

sdk/objc/Framework/Classes/PeerConnection/RTCVideoRendererAdapter.mm

@@ -0,0 +1,80 @@
+/*
+ *  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 "RTCI420Buffer+Private.h"
+#import "RTCVideoRendererAdapter+Private.h"
+#import "WebRTC/RTCVideoFrame.h"
+#import "WebRTC/RTCVideoFrameBuffer.h"
+#import "objc_frame_buffer.h"
+
+#include <memory>
+
+namespace webrtc {
+
+class VideoRendererAdapter
+    : public rtc::VideoSinkInterface<webrtc::VideoFrame> {
+ public:
+  VideoRendererAdapter(RTCVideoRendererAdapter* adapter) {
+    adapter_ = adapter;
+    size_ = CGSizeZero;
+  }
+
+  void OnFrame(const webrtc::VideoFrame& nativeVideoFrame) override {
+    rtc::scoped_refptr<VideoFrameBuffer> video_frame_buffer = nativeVideoFrame.video_frame_buffer();
+    id<RTCVideoFrameBuffer> rtc_frame_buffer;
+    if (video_frame_buffer->type() == VideoFrameBuffer::Type::kNative) {
+      rtc::scoped_refptr<ObjCFrameBuffer> objc_frame_buffer(
+          static_cast<ObjCFrameBuffer*>(video_frame_buffer.get()));
+      rtc_frame_buffer = (id<RTCVideoFrameBuffer>)objc_frame_buffer->wrapped_frame_buffer();
+    } else {
+      rtc_frame_buffer = [[RTCI420Buffer alloc] initWithFrameBuffer:video_frame_buffer->ToI420()];
+    }
+    RTCVideoFrame* videoFrame = [[RTCVideoFrame alloc]
+        initWithBuffer:rtc_frame_buffer
+              rotation:static_cast<RTCVideoRotation>(nativeVideoFrame.rotation())
+           timeStampNs:nativeVideoFrame.timestamp_us() * rtc::kNumNanosecsPerMicrosec];
+
+    CGSize current_size = (videoFrame.rotation % 180 == 0)
+                              ? CGSizeMake(videoFrame.width, videoFrame.height)
+                              : CGSizeMake(videoFrame.height, videoFrame.width);
+
+    if (!CGSizeEqualToSize(size_, current_size)) {
+      size_ = current_size;
+      [adapter_.videoRenderer setSize:size_];
+    }
+    [adapter_.videoRenderer renderFrame:videoFrame];
+  }
+
+ private:
+  __weak RTCVideoRendererAdapter *adapter_;
+  CGSize size_;
+};
+}
+
+@implementation RTCVideoRendererAdapter {
+  std::unique_ptr<webrtc::VideoRendererAdapter> _adapter;
+}
+
+@synthesize videoRenderer = _videoRenderer;
+
+- (instancetype)initWithNativeRenderer:(id<RTCVideoRenderer>)videoRenderer {
+  NSParameterAssert(videoRenderer);
+  if (self = [super init]) {
+    _videoRenderer = videoRenderer;
+    _adapter.reset(new webrtc::VideoRendererAdapter(self));
+  }
+  return self;
+}
+
+- (rtc::VideoSinkInterface<webrtc::VideoFrame> *)nativeVideoRenderer {
+  return _adapter.get();
+}
+
+@end