This CL makes the TranslationService class send the text to be translated to ...

chrome/renderer/render_view.h

 // Copyright (c) 2009 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_RENDER_VIEW_H_
 #define CHROME_RENDERER_RENDER_VIEW_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 141 matching lines @@
 
   // May return NULL when the view is closing.
   WebKit::WebView* webview() const {
     return static_cast<WebKit::WebView*>(webwidget());
   }
 
   gfx::NativeViewId host_window() const {
     return host_window_;
   }
 
-  int browser_window_id() {
+  int browser_window_id() const {
     return browser_window_id_;
   }
 
-  ViewType::Type view_type() {
+  ViewType::Type view_type() const {
     return view_type_;
   }
 
-  PrintWebViewHelper* print_helper() {
+  PrintWebViewHelper* print_helper() const {
     return print_helper_.get();
   }
 
+  int page_id() const {
+    return page_id_;
+  }
+
   // IPC::Channel::Listener
   virtual void OnMessageReceived(const IPC::Message& msg);
 
   // WebViewDelegate
   virtual void LoadNavigationErrorPage(
       WebKit::WebFrame* frame,
       const WebKit::WebURLRequest& failed_request,
       const WebKit::WebURLError& error,
       const std::string& html,
       bool replace);
@@ skipping 498 matching lines @@
   // a custom background.
   void OnSetBackground(const SkBitmap& background);
 
   // Activate/deactivate the RenderView (i.e., set its controls' tint
   // accordingly, etc.).
   void OnSetActive(bool active);
 
   // Execute custom context menu action.
   void OnCustomContextMenuAction(unsigned action);
 
+  // Tells the renderer to translate the page contents.
+  void OnTranslatePage(int page_id,
+                       const std::string& source_lang,
+                       const std::string& target_lang);
+
   // Message that provides the translated text for a request.
   void OnTranslateTextResponse(int work_id,
                                int error_id,
                                const std::vector<string16>& text_chunks);
 
   // Exposes the DOMAutomationController object that allows JS to send
   // information to the browser process.
   void BindDOMAutomationController(WebKit::WebFrame* webframe);
 
   // Creates DevToolsClient and sets up JavaScript bindings for developer tools
@@ skipping 314 matching lines @@
   int64 session_storage_namespace_id_;
 
   // Page translation related objects.
   TextTranslatorImpl text_translator_;
   scoped_ptr<PageTranslator> page_translator_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderView);
 };
 
 #endif  // CHROME_RENDERER_RENDER_VIEW_H_