Add srcObject attribute of type MediaStream to HTMLMediaElement.

content/renderer/media/html_video_element_capturer_source_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/memory/weak_ptr.h"
 #include "base/run_loop.h"
 #include "base/thread_task_runner_handle.h"
 #include "content/renderer/media/html_video_element_capturer_source.h"
 #include "media/base/limits.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 11 matching lines @@
   closure.Run();
 }
 
 // An almost empty WebMediaPlayer to override paint() method.
 class MockWebMediaPlayer : public blink::WebMediaPlayer,
                            public base::SupportsWeakPtr<MockWebMediaPlayer> {
  public:
   MockWebMediaPlayer()  = default;
   ~MockWebMediaPlayer() override = default;
 
-  void load(LoadType, const blink::WebURL&, CORSMode) override {}
+  void load(LoadType, const blink::WebMediaPlayerSource&, CORSMode) override {}
   void play() override {}
   void pause() override {}
   bool supportsSave() const override { return true; }
   void seek(double seconds) override {}
   void setRate(double) override {}
   void setVolume(double) override {}
   blink::WebTimeRanges buffered() const override {
     return blink::WebTimeRanges();
   }
   blink::WebTimeRanges seekable() const override {
@@ skipping 117 matching lines @@
       base::Bind(&HTMLVideoElementCapturerSourceTest::OnRunning,
                  base::Unretained(this)));
 
   run_loop.Run();
 
   html_video_capturer_->StopCapture();
   Mock::VerifyAndClearExpectations(this);
 }
 
 }  // namespace content