Move language detection to a component

chrome/renderer/translate/translate_helper_browsertest.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 "base/time/time.h"
-#include "chrome/common/chrome_constants.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/renderer/translate/translate_helper.h"
 #include "chrome/test/base/chrome_render_view_test.h"
+#include "components/translate/common/translate_constants.h"
 #include "content/public/renderer/render_view.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/web/WebHistoryItem.h"
 
 using testing::AtLeast;
 using testing::Return;
 using testing::_;
 
 class TestTranslateHelper : public TranslateHelper {
@@ skipping 206 matching lines @@
       .WillOnce(Return(false));
   EXPECT_CALL(*translate_helper_, HasTranslationFinished())
       .Times(AtLeast(1))
       .WillRepeatedly(Return(true));
 
   // V8 call for performance monitoring should be ignored.
   EXPECT_CALL(*translate_helper_,
               ExecuteScriptAndGetDoubleResult(_)).Times(3);
 
   translate_helper_->TranslatePage(view_->GetPageId(),
-                                   chrome::kUnknownLanguageCode, "fr",
+                                   translate::kUnknownLanguageCode, "fr",
                                    std::string());
   base::MessageLoop::current()->RunUntilIdle();
 
   int page_id;
   TranslateErrors::Type error;
   std::string original_lang;
   std::string target_lang;
   ASSERT_TRUE(GetPageTranslatedMessage(&page_id, &original_lang, &target_lang,
                                        &error));
   EXPECT_EQ(view_->GetPageId(), page_id);
@@ skipping 225 matching lines @@
 
   GoBack(GetMainFrame()->previousHistoryItem());
 
   message = render_thread_->sink().GetUniqueMessageMatching(
       ChromeViewHostMsg_TranslateLanguageDetermined::ID);
   ASSERT_NE(static_cast<IPC::Message*>(NULL), message);
   ChromeViewHostMsg_TranslateLanguageDetermined::Read(message, &params);
   EXPECT_EQ("zh", params.a.adopted_language);
   render_thread_->sink().ClearMessages();
 }