[Extensions Bindings] Request JS execution from messaging bindings

chrome/renderer/extensions/chrome_extensions_renderer_client.h

 // Copyright 2014 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 CHROME_RENDERER_EXTENSIONS_CHROME_EXTENSIONS_RENDERER_CLIENT_H_
 #define CHROME_RENDERER_EXTENSIONS_CHROME_EXTENSIONS_RENDERER_CLIENT_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 28 matching lines @@
  public:
   ChromeExtensionsRendererClient();
   ~ChromeExtensionsRendererClient() override;
 
   // Get the LazyInstance for ChromeExtensionsRendererClient.
   static ChromeExtensionsRendererClient* GetInstance();
 
   // extensions::ExtensionsRendererClient implementation.
   bool IsIncognitoProcess() const override;
   int GetLowestIsolatedWorldId() const override;
+  extensions::Dispatcher* GetDispatcher() override;
 
   // See ChromeContentRendererClient methods with the same names.
   void RenderThreadStarted();
   void RenderFrameCreated(content::RenderFrame* render_frame);
   void RenderViewCreated(content::RenderView* render_view);
   bool OverrideCreatePlugin(content::RenderFrame* render_frame,
                             const blink::WebPluginParams& params);
   bool AllowPopup();
   bool WillSendRequest(blink::WebLocalFrame* frame,
                        ui::PageTransition transition_type,
@@ skipping 28 matching lines @@
   std::unique_ptr<extensions::RendererPermissionsPolicyDelegate>
       permissions_policy_delegate_;
   std::unique_ptr<extensions::ExtensionsGuestViewContainerDispatcher>
       guest_view_container_dispatcher_;
   std::unique_ptr<extensions::ResourceRequestPolicy> resource_request_policy_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsRendererClient);
 };
 
 #endif  // CHROME_RENDERER_EXTENSIONS_CHROME_EXTENSIONS_RENDERER_CLIENT_H_