Refactor BrowserViewRenderer to support page visibility

android_webview/native/aw_contents.h

 // Copyright (c) 2012 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.
 
 #ifndef ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_
 #define ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_
 
 #include <jni.h>
 #include <list>
 #include <string>
@@ skipping 97 matching lines @@
                                jfloat x,
                                jfloat y,
                                jfloat touch_major);
   void UpdateLastHitTestData(JNIEnv* env, jobject obj);
   void OnSizeChanged(JNIEnv* env, jobject obj, int w, int h, int ow, int oh);
   void SetViewVisibility(JNIEnv* env, jobject obj, bool visible);
   void SetWindowVisibility(JNIEnv* env, jobject obj, bool visible);
   void SetIsPaused(JNIEnv* env, jobject obj, bool paused);
   void OnAttachedToWindow(JNIEnv* env, jobject obj, int w, int h);
   void OnDetachedFromWindow(JNIEnv* env, jobject obj);
+  bool IsVisible(JNIEnv* env, jobject obj);
   base::android::ScopedJavaLocalRef<jbyteArray> GetOpaqueState(
       JNIEnv* env, jobject obj);
   jboolean RestoreFromOpaqueState(JNIEnv* env, jobject obj, jbyteArray state);
   void FocusFirstNode(JNIEnv* env, jobject obj);
   void SetBackgroundColor(JNIEnv* env, jobject obj, jint color);
   void OnComputeScroll(JNIEnv* env, jobject obj, jlong animation_time_millis);
   bool OnDraw(JNIEnv* env,
               jobject obj,
               jobject canvas,
               jboolean is_hardware_accelerated,
@@ skipping 147 matching lines @@
   GLViewRendererManager::Key renderer_manager_key_;
 
   DISALLOW_COPY_AND_ASSIGN(AwContents);
 };
 
 bool RegisterAwContents(JNIEnv* env);
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_CONTENTS_H_