Throttle media decoding after excessive Android media server crashes

content/public/browser/web_contents_delegate.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 CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_
 
 #include <set>
 #include <string>
 
@@ skipping 19 matching lines @@
 namespace base {
 class FilePath;
 class ListValue;
 }
 
 namespace content {
 class BrowserContext;
 class ColorChooser;
 class DownloadItem;
 class JavaScriptDialogManager;
+#if defined(OS_ANDROID)
+class MediaThrottler;

[Ted C, 2015/09/28 22:42:30]

why is this needed?

[qinmin, 2015/09/29 23:16:23]

removed

+#endif
 class PageState;
 class RenderViewHost;
 class SessionStorageNamespace;
 class WebContents;
 class WebContentsImpl;
 struct ColorSuggestion;
 struct ContextMenuParams;
 struct DropData;
 struct FileChooserParams;
 struct NativeWebKeyboardEvent;
@@ skipping 396 matching lines @@
       const MediaStreamRequest& request,
       const MediaResponseCallback& callback);
 
   // Checks if we have permission to access the microphone or camera. Note that
   // this does not query the user. |type| must be MEDIA_DEVICE_AUDIO_CAPTURE
   // or MEDIA_DEVICE_VIDEO_CAPTURE.
   virtual bool CheckMediaAccessPermission(WebContents* web_contents,
                                           const GURL& security_origin,
                                           MediaStreamType type);
 
+#if defined(OS_ANDROID)
+  // Asks permission to decode media stream. After permission is determined,
+  // |callback| will be called with the result.
+  virtual void RequestMediaDecodePermission(
+      WebContents* web_contents,
+      const base::Callback<void(bool)>& callback);
+#endif
+
   // Requests permission to access the PPAPI broker. The delegate should return
   // true and call the passed in |callback| with the result, or return false
   // to indicate that it does not support asking for permission.
   virtual bool RequestPpapiBrokerPermission(
       WebContents* web_contents,
       const GURL& url,
       const base::FilePath& plugin_path,
       const base::Callback<void(bool)>& callback);
 
   // Returns the size for the new render view created for the pending entry in
@@ skipping 51 matching lines @@
   // Called when |this| is no longer the WebContentsDelegate for |source|.
   void Detach(WebContents* source);
 
   // The WebContents that this is currently a delegate for.
   std::set<WebContents*> attached_contents_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_