Don't show the translate bar when refreshing a page with the notranslate content tag.

chrome/browser/translate/translate_manager.cc

 // Copyright (c) 2012 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/translate/translate_manager.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/json/json_reader.h"
@@ skipping 316 matching lines @@
           helper->language_state().translation_declined()) {
         // Some sites (such as Google map) may trigger sub-frame navigations
         // when the user interacts with the page.  We don't want to show a new
         // infobar if the user already dismissed one in that case.
         return;
       }
       if (entry->GetTransitionType() != content::PAGE_TRANSITION_RELOAD &&
           load_details->type != content::NAVIGATION_TYPE_SAME_PAGE) {
         return;
       }
       // When doing a page reload, we don't get a TAB_LANGUAGE_DETERMINED

[James Hawkins, 2012/08/07 00:49:13]

Drive-by optional nit: Don't use pronouns (we) in comments; pronouns are
ambiguous.

[MAD, 2012/08/07 01:25:04]

Done.

-      // notification.  So we need to explictly initiate the translation.
+      // notification.  So we need to explicitly initiate the translation.
+      // At least when the page is indeed translatable.

[James Hawkins, 2012/08/07 00:49:13]

Grammar nit: Sentence fragment.

[MAD, 2012/08/07 01:25:04]

Done.

+      if (!helper->language_state().page_translatable())
+        return;
       // Note that we delay it as the TranslateManager gets this notification
       // before the WebContents and the WebContents processing might remove the
       // current infobars.  Since InitTranslation might add an infobar, it must
       // be done after that.
       MessageLoop::current()->PostTask(FROM_HERE,
           base::Bind(
               &TranslateManager::InitiateTranslationPosted,
               weak_method_factory_.GetWeakPtr(),
               controller->GetWebContents()->GetRenderProcessHost()->GetID(),
               controller->GetWebContents()->
@@ skipping 548 matching lines @@
   InfoBarTabHelper* infobar_helper = tab_contents->infobar_tab_helper();
 
   for (size_t i = 0; i < infobar_helper->infobar_count(); ++i) {
     TranslateInfoBarDelegate* delegate =
         infobar_helper->GetInfoBarDelegateAt(i)->AsTranslateInfoBarDelegate();
     if (delegate)
       return delegate;
   }
   return NULL;
 }