Revert 35735 - Relanding the language detection code....

chrome/browser/renderer_host/render_view_host.cc

 // 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.
 
 #include "chrome/browser/renderer_host/render_view_host.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 28 matching lines @@
 #include "chrome/common/thumbnail_score.h"
 #include "chrome/common/url_constants.h"
 #include "net/base/net_util.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebFindOptions.h"
 #include "webkit/glue/form_field_values.h"
 
 #if defined(OS_WIN)
 // TODO(port): accessibility not yet implemented. See http://crbug.com/8288.
 #include "chrome/browser/browser_accessibility_manager.h"
+// TODO(port): The compact language detection library works only for Windows.
+#include "third_party/cld/bar/toolbar/cld/i18n/encodings/compact_lang_det/win/cld_unicodetext.h"
 #endif
 
 using base::TimeDelta;
 using webkit_glue::PasswordFormDomManager;
 using WebKit::WebConsoleMessage;
 using WebKit::WebDragOperation;
 using WebKit::WebDragOperationNone;
 using WebKit::WebDragOperationsMask;
 using WebKit::WebFindOptions;
 using WebKit::WebInputEvent;
@@ skipping 355 matching lines @@
   Send(new ViewMsg_Find(routing_id(), request_id, search_text, options));
 
   // This call is asynchronous and returns immediately.
   // The result of the search is sent as a notification message by the renderer.
 }
 
 void RenderViewHost::StopFinding(bool clear_selection) {
   Send(new ViewMsg_StopFinding(routing_id(), clear_selection));
 }
 
+void RenderViewHost::GetPageLanguage() {
+  Send(new ViewMsg_DeterminePageText(routing_id()));
+}
+
 void RenderViewHost::Zoom(PageZoom::Function function) {
   Send(new ViewMsg_Zoom(routing_id(), function));
 }
 
 void RenderViewHost::SetPageEncoding(const std::string& encoding_name) {
   Send(new ViewMsg_SetPageEncoding(routing_id(), encoding_name));
 }
 
 void RenderViewHost::ResetPageEncodingToDefault() {
   Send(new ViewMsg_ResetPageEncodingToDefault(routing_id()));
@@ skipping 312 matching lines @@
                         OnMsgDidDisplayInsecureContent)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidRunInsecureContent,
                         OnMsgDidRunInsecureContent)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidRedirectProvisionalLoad,
                         OnMsgDidRedirectProvisionalLoad)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidStartProvisionalLoadForFrame,
                         OnMsgDidStartProvisionalLoadForFrame)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidFailProvisionalLoadWithError,
                         OnMsgDidFailProvisionalLoadWithError)
     IPC_MESSAGE_HANDLER(ViewHostMsg_Find_Reply, OnMsgFindReply)
+    IPC_MESSAGE_HANDLER(ViewMsg_DeterminePageText_Reply,
+                        OnDeterminePageTextReply)
     IPC_MESSAGE_HANDLER(ViewMsg_ExecuteCodeFinished,
                         OnExecuteCodeFinished)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateFavIconURL, OnMsgUpdateFavIconURL)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidDownloadFavIcon, OnMsgDidDownloadFavIcon)
     IPC_MESSAGE_HANDLER(ViewHostMsg_ContextMenu, OnMsgContextMenu)
     IPC_MESSAGE_HANDLER(ViewHostMsg_OpenURL, OnMsgOpenURL)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidContentsPreferredSizeChange,
                         OnMsgDidContentsPreferredSizeChange)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DomOperationResponse,
                         OnMsgDomOperationResponse)
@@ skipping 63 matching lines @@
                         OnCancelDesktopNotification)
     IPC_MESSAGE_HANDLER(ViewHostMsg_RequestNotificationPermission,
                         OnRequestNotificationPermission)
     IPC_MESSAGE_HANDLER(ViewHostMsg_ExtensionRequest, OnExtensionRequest)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SelectionChanged, OnMsgSelectionChanged)
     IPC_MESSAGE_HANDLER(ViewHostMsg_ExtensionPostMessage,
                         OnExtensionPostMessage)
     IPC_MESSAGE_HANDLER(ViewHostMsg_AccessibilityFocusChange,
                         OnAccessibilityFocusChange)
     IPC_MESSAGE_HANDLER(ViewHostMsg_OnCSSInserted, OnCSSInserted)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_PageContents, OnPageContents)
     // Have the super handle all other messages.
     IPC_MESSAGE_UNHANDLED(RenderWidgetHost::OnMessageReceived(msg))
   IPC_END_MESSAGE_MAP_EX()
 
   if (!msg_is_ok) {
     // The message had a handler, but its de-serialization failed.
     // Kill the renderer.
     process()->ReceivedBadMessage(msg.type());
   }
 }
@@ skipping 283 matching lines @@
 
   // Send a notification to the renderer that we are ready to receive more
   // results from the scoping effort of the Find operation. The FindInPage
   // scoping is asynchronous and periodically sends results back up to the
   // browser using IPC. In an effort to not spam the browser we have the
   // browser send an ACK for each FindReply message and have the renderer
   // queue up the latest status message while waiting for this ACK.
   Send(new ViewMsg_FindReplyACK(routing_id()));
 }
 
+void RenderViewHost::OnDeterminePageTextReply(
+    const std::wstring& page_text) {
+#if defined(OS_WIN)  // Only for windows.
+    int num_languages = 0;
+    bool is_reliable = false;
+    const char* language_iso_code = LanguageCodeISO639_1(
+        DetectLanguageOfUnicodeText(NULL, page_text.c_str(), true, &is_reliable,
+                                    &num_languages, NULL));
+    std::string language(language_iso_code);
+    NotificationService::current()->Notify(
+        NotificationType::TAB_LANGUAGE_DETERMINED,
+        Source<RenderViewHost>(this),
+        Details<std::string>(&language));
+#endif
+}
+
 void RenderViewHost::OnExecuteCodeFinished(int request_id, bool success) {
   std::pair<int, bool> result_details(request_id, success);
   NotificationService::current()->Notify(
       NotificationType::TAB_CODE_EXECUTED,
       NotificationService::AllSources(),
       Details<std::pair<int, bool> >(&result_details));
 }
 
 void RenderViewHost::OnMsgUpdateFavIconURL(int32 page_id,
                                            const GURL& icon_url) {
@@ skipping 600 matching lines @@
   BrowserAccessibilityManager::GetInstance()->ChangeAccessibilityFocus(
       acc_obj_id, process()->id(), routing_id());
 #else
   // TODO(port): accessibility not yet implemented. See http://crbug.com/8288.
 #endif
 }
 
 void RenderViewHost::OnCSSInserted() {
   delegate_->DidInsertCSS();
 }
-
-void RenderViewHost::OnPageContents(const GURL& url,
-                                    int32 page_id,
-                                    const std::wstring& contents) {
-  RenderViewHostDelegate::BrowserIntegration* integration_delegate =
-      delegate_->GetBrowserIntegrationDelegate();
-  if (!integration_delegate)
-    return;
-  integration_delegate->OnPageContents(url, process()->id(), page_id, contents);
-}