Relanding the language detection.

chrome/common/render_messages_internal.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.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
 #include <map>
 #include <string>
@@ skipping 235 matching lines @@
   // handle is valid in the context of the renderer.
   IPC_MESSAGE_CONTROL1(ViewMsg_UserScripts_UpdatedScripts,
                        base::SharedMemoryHandle)
 
   // Sent when the user wants to search for a word on the page (find in page).
   IPC_MESSAGE_ROUTED3(ViewMsg_Find,
                       int /* request_id */,
                       string16 /* search_text */,
                       WebKit::WebFindOptions)
 
-  // Send from the browser to the rendered to get the text content of the page.
-  IPC_MESSAGE_ROUTED0(ViewMsg_DeterminePageText)
-
-  // Send from the renderer to the browser to return the text content of the
-  // page.
-  IPC_MESSAGE_ROUTED1(ViewMsg_DeterminePageText_Reply,
-                      std::wstring /* the language */)
-
   // Send from the renderer to the browser to return the script running result.
   IPC_MESSAGE_ROUTED2(ViewMsg_ExecuteCodeFinished,
                       int, /* request id */
                       bool /* whether the script ran successfully */)
 
   // Sent when the headers are available for a resource request.
   IPC_MESSAGE_ROUTED2(ViewMsg_Resource_ReceivedResponse,
                       int /* request_id */,
                       ResourceResponseHead)
 
@@ skipping 824 matching lines @@
                       int /* the tag */)
 
   // Tells the browser to display or not display the SpellingPanel
   IPC_MESSAGE_ROUTED1(ViewHostMsg_ShowSpellingPanel,
                       bool /* if true, then show it, otherwise hide it*/)
 
   // Tells the browser to update the spelling panel with the given word.
   IPC_MESSAGE_ROUTED1(ViewHostMsg_UpdateSpellingPanelWithMisspelledWord,
                       string16 /* the word to update the panel with */)
 
-  // Initiate a download based on user actions like 'ALT+click'.
+  // Initiates a download based on user actions like 'ALT+click'.
   IPC_MESSAGE_ROUTED2(ViewHostMsg_DownloadUrl,
                       GURL /* url */,
                       GURL /* referrer */)
 
   // Used to go to the session history entry at the given offset (ie, -1 will
   // return the "back" item).
   IPC_MESSAGE_ROUTED1(ViewHostMsg_GoToEntryAtOffset,
                       int /* offset (from current) of history item to get */)
 
   IPC_SYNC_MESSAGE_ROUTED4_2(ViewHostMsg_RunJavaScriptMessage,
                              std::wstring /* in - alert message */,
                              std::wstring /* in - default prompt */,
                              GURL         /* in - originating page URL */,
                              int          /* in - dialog flags */,
                              bool         /* out - success */,
                              std::wstring /* out - prompt field */)
 
-  // Sets the contents for the given page (URL and page ID are the first two
-  // arguments) given the contents that is the 3rd.
-  IPC_MESSAGE_CONTROL3(ViewHostMsg_PageContents, GURL, int32, std::wstring)
+  // Provides the contents for the given page that was loaded recently.
+  IPC_MESSAGE_ROUTED3(ViewHostMsg_PageContents,
+                      GURL /* URL of the page */,
+                      int32 /* page id */,
+                      std::wstring /*page contents */)
 
   // Used to get the extension message bundle.
   IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_GetExtensionMessageBundle,
                               std::string /* extension id */,
                               SubstitutionMap /* message bundle */)
 
   // Specifies the URL as the first parameter (a wstring) and thumbnail as
   // binary data as the second parameter.
   IPC_MESSAGE_ROUTED3(ViewHostMsg_Thumbnail,
                       GURL /* url */,
                       ThumbnailScore /* score */,
                       SkBitmap /* bitmap */)
 
   // Notification that the url for the favicon of a site has been determined.
   IPC_MESSAGE_ROUTED2(ViewHostMsg_UpdateFavIconURL,
                       int32 /* page_id */,
                       GURL /* url of the favicon */)
 
   // Used to tell the parent that the user right clicked on an area of the
   // content area, and a context menu should be shown for it. The params
   // object contains information about the node(s) that were selected when the
   // user right clicked.
   IPC_MESSAGE_ROUTED1(ViewHostMsg_ContextMenu, ContextMenuParams)
 
-  // Request that the given URL be opened in the specified manner.
+  // Requests that the given URL be opened in the specified manner.
   IPC_MESSAGE_ROUTED3(ViewHostMsg_OpenURL,
                       GURL /* url */,
                       GURL /* referrer */,
                       WindowOpenDisposition /* disposition */)
 
-  // Notify that the preferred size of the content changed.
+  // Notifies that the preferred size of the content changed.
   IPC_MESSAGE_ROUTED1(ViewHostMsg_DidContentsPreferredSizeChange,
                       gfx::Size /* pref_size */)
 
   // Following message is used to communicate the values received by the
   // callback binding the JS to Cpp.
   // An instance of browser that has an automation host listening to it can
   // have a javascript send a native value (string, number, boolean) to the
   // listener in Cpp. (DomAutomationController)
   IPC_MESSAGE_ROUTED2(ViewHostMsg_DomOperationResponse,
                       std::string  /* json_string */,
@@ skipping 817 matching lines @@
                               string16 /* word */,
                               int /* document tag */,
                               bool /* correct */)
 
   IPC_SYNC_MESSAGE_CONTROL1_1(
       ViewHostMsg_SpellChecker_PlatformFillSuggestionList,
       string16 /* word */,
       std::vector<string16> /* suggestions */)
 
 IPC_END_MESSAGES(ViewHost)