Provide a WebContents API to discover the playback of a fullscreen video.

content/browser/web_contents/web_contents_android.cc

 // Copyright 2013 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 "content/browser/web_contents/web_contents_android.h"
 
 #include <stdint.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ skipping 692 matching lines @@
     view->DismissTextHandles();
 }
 
 void WebContentsAndroid::SetHasPersistentVideo(
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& obj,
     jboolean value) {
   web_contents_->SetHasPersistentVideo(value);
 }
 
+bool WebContentsAndroid::HasActiveEffectivelyFullscreenVideo(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj) {
+  return web_contents_->HasActiveEffectivelyFullscreenVideo();
+}
+
 void WebContentsAndroid::OnFinishGetContentBitmap(
     const JavaRef<jobject>& obj,
     const JavaRef<jobject>& callback,
     const SkBitmap& bitmap,
     ReadbackResponse response) {
   JNIEnv* env = base::android::AttachCurrentThread();
   ScopedJavaLocalRef<jobject> java_bitmap;
   if (response == READBACK_SUCCESS)
     java_bitmap = gfx::ConvertToJavaBitmap(&bitmap);
   Java_WebContentsImpl_onGetContentBitmapFinished(env, obj, callback,
@@ skipping 31 matching lines @@
       env, obj, callback, id, http_status_code, jurl, jbitmaps, jsizes);
 }
 
 void WebContentsAndroid::SetMediaSession(
     const ScopedJavaLocalRef<jobject>& j_media_session) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_WebContentsImpl_setMediaSession(env, obj_, j_media_session);
 }
 
 }  // namespace content