Makes the language detection happen with every page load

as we do with the page indexing. (The language detection was
previously done on demand when the extension related API was querying it.)
Once detected the language is stored on the navigation entry.
It'll be used for the upcoming translation feature.

Also I moved the existing language detection from the UI to
the file thread.

The change required few changes for the
chrome.tabs.detectLanguage extension API to still work.

BUG=None
TEST=Run the browser tests and unit-tests.

Review URL: http://codereview.chromium.org/492024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@34728 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 8 insertions, 14 deletions

diff --git a/chrome/common/render_messages_internal.h b/chrome/common/render_messages_internal.h
index d043b29..0051389 100644
--- a/chrome/common/render_messages_internal.h
+++ b/chrome/common/render_messages_internal.h
@@ -257,14 +257,6 @@ IPC_BEGIN_MESSAGES(View)
                       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 */
@@ -1127,7 +1119,7 @@ IPC_BEGIN_MESSAGES(ViewHost)
   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 */)
@@ -1145,9 +1137,11 @@ IPC_BEGIN_MESSAGES(ViewHost)
                              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 */)
 
   // Specifies the URL as the first parameter (a wstring) and thumbnail as
   // binary data as the second parameter.
@@ -1167,13 +1161,13 @@ IPC_BEGIN_MESSAGES(ViewHost)
   // 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 */)