Componentize TranslateUIDelegate

chrome/browser/ui/cocoa/infobars/translate_infobar_unittest.mm

 // Copyright (c) 2011 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.
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/mac/scoped_nsobject.h"
 #import "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #import "chrome/app/chrome_command_ids.h"  // For translate menu command ids.
@@ skipping 59 matching lines @@
   }
 
   // Each test gets a single Mock translate delegate for the lifetime of
   // the test.
   virtual void SetUp() OVERRIDE {
     TranslateLanguageList::DisableUpdate();
     CocoaProfileTest::SetUp();
     web_contents_.reset(
         WebContents::Create(WebContents::CreateParams(profile())));
     InfoBarService::CreateForWebContents(web_contents_.get());
+    TranslateTabHelper::CreateForWebContents(web_contents_.get());
   }
 
   virtual void TearDown() OVERRIDE {
     if (infobar_) {
       infobar_->CloseSoon();
       infobar_ = NULL;
     }
     CocoaProfileTest::TearDown();
   }
 
@@ skipping 171 matching lines @@
   translate_prefs->ResetTranslationDeniedCount("en");
   for (int i = 0; i < 4; ++i) {
     translate_prefs->IncrementTranslationDeniedCount("en");
   }
   CreateInfoBar(translate::TRANSLATE_STEP_BEFORE_TRANSLATE);
   BeforeTranslateInfobarController* controller =
       (BeforeTranslateInfobarController*)infobar_controller_.get();
   EXPECT_TRUE([[controller alwaysTranslateButton] superview] == nil);
   EXPECT_TRUE([[controller neverTranslateButton] superview] != nil);
 }