[Android WebView] Migrate the rendering code to a separate set of classes.

android_webview/browser/renderer_host/aw_render_view_host_ext.cc

 // 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.
 
 #include "android_webview/browser/renderer_host/aw_render_view_host_ext.h"
 
 #include "android_webview/common/render_view_messages.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/callback.h"
 #include "base/logging.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 
 namespace android_webview {
 
-AwRenderViewHostExt::AwRenderViewHostExt(content::WebContents* contents,
-                                         Client* client)
+AwRenderViewHostExt::AwRenderViewHostExt(content::WebContents* contents)
     : content::WebContentsObserver(contents),
-      has_new_hit_test_data_(false),
-      client_(client) {
+      has_new_hit_test_data_(false) {
 }
 
 AwRenderViewHostExt::~AwRenderViewHostExt() {}
 
 void AwRenderViewHostExt::DocumentHasImages(DocumentHasImagesResult result) {
   DCHECK(CalledOnValidThread());
   if (!web_contents()->GetRenderViewHost()) {
     result.Run(false);
     return;
   }
@@ skipping 39 matching lines @@
   }
 }
 
 bool AwRenderViewHostExt::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(AwRenderViewHostExt, message)
     IPC_MESSAGE_HANDLER(AwViewHostMsg_DocumentHasImagesResponse,
                         OnDocumentHasImagesResponse)
     IPC_MESSAGE_HANDLER(AwViewHostMsg_UpdateHitTestData,
                         OnUpdateHitTestData)
-    IPC_MESSAGE_HANDLER(AwViewHostMsg_PictureUpdated,
-                        OnPictureUpdated)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled ? true : WebContentsObserver::OnMessageReceived(message);
 }
 
 void AwRenderViewHostExt::OnDocumentHasImagesResponse(int msg_id,
                                                       bool has_images) {
   DCHECK(CalledOnValidThread());
   std::map<int, DocumentHasImagesResult>::iterator pending_req =
       pending_document_has_images_requests_.find(msg_id);
   if (pending_req == pending_document_has_images_requests_.end()) {
     DLOG(WARNING) << "unexpected DocumentHasImages Response: " << msg_id;
   } else {
     pending_req->second.Run(has_images);
     pending_document_has_images_requests_.erase(pending_req);
   }
 }
 
 void AwRenderViewHostExt::OnUpdateHitTestData(
     const AwHitTestData& hit_test_data) {
   DCHECK(CalledOnValidThread());
   last_hit_test_data_ = hit_test_data;
   has_new_hit_test_data_ = true;
 }
 
-void AwRenderViewHostExt::OnPictureUpdated() {
-  if (client_)
-    client_->OnPictureUpdated(web_contents()->GetRenderProcessHost()->GetID(),
-                              routing_id());
-}
-
 }  // namespace android_webview