Use internal hooks for notifying fullscreen changes to media controls

third_party/WebKit/Source/core/html/shadow/MediaControlsOrientationLockDelegateTest.cpp

 // Copyright 2016 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 "core/html/shadow/MediaControlsOrientationLockDelegate.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/DocumentUserGestureToken.h"
 #include "core/dom/Fullscreen.h"
 #include "core/frame/ScreenOrientationController.h"
@@ skipping 27 matching lines @@
 
 class MockVideoWebMediaPlayer : public EmptyWebMediaPlayer {
  public:
   bool hasVideo() const override { return true; }
 
   MOCK_CONST_METHOD0(naturalSize, WebSize());
 };
 
 class MockChromeClient : public EmptyChromeClient {
  public:
+  void fullscreenElementChanged(Element* fromElement,
+                                Element* toElement) override {
+    if (isHTMLVideoElement(toElement))
+      toHTMLVideoElement(toElement)->didEnterFullscreen();
+    if (isHTMLVideoElement(fromElement))
+      toHTMLVideoElement(fromElement)->didExitFullscreen();
+  }
+
   MOCK_CONST_METHOD0(screenInfo, WebScreenInfo());
 };
 
 class StubLocalFrameClient : public EmptyLocalFrameClient {
  public:
   static StubLocalFrameClient* create() { return new StubLocalFrameClient; }
 
   std::unique_ptr<WebMediaPlayer> createWebMediaPlayer(
       HTMLMediaElement&,
       const WebMediaPlayerSource&,
@@ skipping 332 matching lines @@
   EXPECT_EQ(WebScreenOrientationLockLandscape, computeOrientationLock());
 
   screenInfo.orientationType = WebScreenOrientationLandscapeSecondary;
   EXPECT_CALL(chromeClient(), screenInfo())
       .Times(1)
       .WillOnce(Return(screenInfo));
   EXPECT_EQ(WebScreenOrientationLockLandscape, computeOrientationLock());
 }
 
 }  // namespace blink