[Blink>Media] Add heuristic for dominant video detection for Android

third_party/WebKit/Source/core/html/HTMLVideoElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/html/HTMLVideoElement.h"
 
+#include <memory>
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/CSSPropertyNames.h"
 #include "core/HTMLNames.h"
 #include "core/dom/Attribute.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/Fullscreen.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/frame/ImageBitmap.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/Settings.h"
+#include "core/html/MediaCustomControlsFullscreenDetector.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/imagebitmap/ImageBitmapOptions.h"
 #include "core/layout/LayoutImage.h"
 #include "core/layout/LayoutVideo.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/gpu/Extensions3DUtil.h"
 #include "public/platform/WebCanvas.h"
-#include <memory>
 
 namespace blink {
 
 using namespace HTMLNames;
 
 inline HTMLVideoElement::HTMLVideoElement(Document& document)
-    : HTMLMediaElement(videoTag, document) {
+    : HTMLMediaElement(videoTag, document),
+      m_customControlsFullscreenDetector(
+          new MediaCustomControlsFullscreenDetector(*this)) {
   if (document.settings()) {
     m_defaultPosterURL =
         AtomicString(document.settings()->getDefaultVideoPosterURL());
   }
 }
 
 HTMLVideoElement* HTMLVideoElement::create(Document& document) {
   HTMLVideoElement* video = new HTMLVideoElement(document);
   video->ensureUserAgentShadowRoot();
   video->suspendIfNeeded();
   return video;
 }
 
 DEFINE_TRACE(HTMLVideoElement) {
   visitor->trace(m_imageLoader);
+  visitor->trace(m_customControlsFullscreenDetector);
   HTMLMediaElement::trace(visitor);
 }
 
 bool HTMLVideoElement::layoutObjectIsNeeded(const ComputedStyle& style) {
   return HTMLElement::layoutObjectIsNeeded(style);
 }
 
 LayoutObject* HTMLVideoElement::createLayoutObject(const ComputedStyle&) {
   return new LayoutVideo(this);
 }
@@ skipping 188 matching lines @@
 bool HTMLVideoElement::usesOverlayFullscreenVideo() const {
   if (RuntimeEnabledFeatures::forceOverlayFullscreenVideoEnabled())
     return true;
 
   return webMediaPlayer() && webMediaPlayer()->supportsOverlayFullscreenVideo();
 }
 
 void HTMLVideoElement::didMoveToNewDocument(Document& oldDocument) {
   if (m_imageLoader)
     m_imageLoader->elementDidMoveToNewDocument();
+
   HTMLMediaElement::didMoveToNewDocument(oldDocument);
 }
 
 unsigned HTMLVideoElement::webkitDecodedFrameCount() const {
   if (!webMediaPlayer())
     return 0;
 
   return webMediaPlayer()->decodedFrameCount();
 }
 
@@ skipping 82 matching lines @@
     return ScriptPromise();
   if (!ImageBitmap::isResizeOptionValid(options, exceptionState))
     return ScriptPromise();
   return ImageBitmapSource::fulfillImageBitmap(
       scriptState,
       ImageBitmap::create(this, cropRect,
                           eventTarget.toLocalDOMWindow()->document(), options));
 }
 
 }  // namespace blink