[Extensions] Clean up the handling of ExtensionHostMsg_Request

chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc

Index: chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
diff --git a/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc b/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
index d242bd072629b568d0d9c62504a06e75f099dd42..090538fba610249dddb44ab9a2d677c15f60b8ac 100644
--- a/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
+++ b/chrome/browser/ui/ash/ash_keyboard_controller_proxy.cc
@@ -14,7 +14,6 @@
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/event_router.h"
-#include "extensions/browser/extension_function_dispatcher.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/view_type_utils.h"
 #include "extensions/common/api/virtual_keyboard_private.h"
@@ -118,12 +117,6 @@ AshKeyboardControllerProxy::~AshKeyboardControllerProxy() {
   DCHECK(!keyboard_controller_);
 }
 
-void AshKeyboardControllerProxy::OnRequest(
-    const ExtensionHostMsg_Request_Params& params) {
-  extension_function_dispatcher_->Dispatch(
-      params, web_contents()->GetRenderViewHost());
-}
-
 ui::InputMethod* AshKeyboardControllerProxy::GetInputMethod() {
   aura::Window* root_window = ash::Shell::GetTargetRootWindow();
   DCHECK(root_window);
@@ -149,20 +142,12 @@ void AshKeyboardControllerProxy::RequestAudioInput(
 
 void AshKeyboardControllerProxy::SetupWebContents(
     content::WebContents* contents) {
-  extension_function_dispatcher_.reset(
-      new extensions::ExtensionFunctionDispatcher(browser_context(), this));
   extensions::SetViewType(contents, extensions::VIEW_TYPE_VIRTUAL_KEYBOARD);
   extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
       contents);
   Observe(contents);
 }
 
-extensions::WindowController*
-    AshKeyboardControllerProxy::GetExtensionWindowController() const {
-  // The keyboard doesn't have a window controller.
-  return NULL;
-}
-
 void AshKeyboardControllerProxy::SetController(
     keyboard::KeyboardController* controller) {
   // During KeyboardController destruction, controller can be set to null.
@@ -177,21 +162,6 @@ void AshKeyboardControllerProxy::SetController(
   keyboard_controller_->AddObserver(observer_.get());
 }
 
-content::WebContents*
-    AshKeyboardControllerProxy::GetAssociatedWebContents() const {
-  return web_contents();
-}
-
-bool AshKeyboardControllerProxy::OnMessageReceived(
-    const IPC::Message& message) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(AshKeyboardControllerProxy, message)
-    IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}
-
 void AshKeyboardControllerProxy::RenderViewCreated(
     content::RenderViewHost* render_view_host) {
   content::HostZoomMap* zoom_map =