Adding MimeHandlerView.

content/public/renderer/content_renderer_client.h

Index: content/public/renderer/content_renderer_client.h
diff --git a/content/public/renderer/content_renderer_client.h b/content/public/renderer/content_renderer_client.h
index ada672f46ecc109e9fa3f853426a8420e8d0f26a..e3aef3e3a25b3112ae7bf29add8f636fff711979 100644
--- a/content/public/renderer/content_renderer_client.h
+++ b/content/public/renderer/content_renderer_client.h
@@ -50,6 +50,7 @@ struct WebURLError;
 }
 
 namespace content {
+class BrowserPluginDelegate;
 class DocumentState;
 class RenderFrame;
 class RenderView;
@@ -101,6 +102,11 @@ class CONTENT_EXPORT ContentRendererClient {
       RenderFrame* render_frame,
       const base::FilePath& plugin_path);
 
+  // Creates a delegate for browser plugin.
+  virtual BrowserPluginDelegate* CreateBrowserPluginDelegate(
+      RenderFrame* render_frame,
+      const std::string& mime_type);
+
   // Returns true if the embedder has an error page to show for the given http
   // status code. If so |error_domain| should be set to according to WebURLError
   // and the embedder's GetNavigationErrorHtml will be called afterwards to get