Allow extensions of the ManifestParser outside of the content/ layer.

content/public/renderer/content_renderer_client.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_RENDERER_CONTENT_RENDERER_CLIENT_H_
 #define CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 42 matching lines @@
 }
 
 namespace media {
 class RendererFactory;
 struct KeySystemInfo;
 }
 
 namespace content {
 class BrowserPluginDelegate;
 class DocumentState;
+class ManifestParser;
 class RenderFrame;
 class RenderView;
 class SynchronousCompositor;
 struct WebPluginInfo;
 
 // Embedder API for participating in renderer logic.
 class CONTENT_EXPORT ContentRendererClient {
  public:
   virtual ~ContentRendererClient() {}
 
@@ skipping 212 matching lines @@
 
   // Returns true if the page at |url| can use Pepper Compositor APIs.
   virtual bool IsPluginAllowedToUseCompositorAPI(const GURL& url);
 
   // Returns true if dev channel APIs are available for plugins.
   virtual bool IsPluginAllowedToUseDevChannelAPIs();
 
   // Returns a user agent override specific for |url|, or empty string if
   // default user agent should be used.
   virtual std::string GetUserAgentOverrideForURL(const GURL& url);
+
+  // Returns whether the default ManifestParser should be overridden.
+  // If returns |true|, |*parser| should be a valid pointer owned by the caller.
+  // Otherwise, |parser| must be null.
+  virtual bool OverrideManifestParser(content::ManifestParser** parser);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_