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

chrome/renderer/render_view.h

Index: chrome/renderer/render_view.h
===================================================================
--- chrome/renderer/render_view.h	(revision 37411)
+++ chrome/renderer/render_view.h	(working copy)
@@ -159,18 +159,22 @@
     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);
 
@@ -689,6 +693,11 @@
   // 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,