Speech Recognition API: Safeguarding against page closes during startup

chrome/browser/speech/speech_recognition_bubble_controller_unittest.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/bind.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/speech/speech_recognition_bubble_controller.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
@@ skipping 134 matching lines @@
     // passed to CreateBubble would not have matched any active tab. So get a
     // real WebContents pointer from the test fixture and pass that, because
     // the bubble controller registers for tab close notifications which need
     // a valid WebContents.
     web_contents =
         test_fixture_->browser()->tab_strip_model()->GetActiveWebContents();
     return new MockSpeechRecognitionBubble(web_contents, delegate,
                                            element_rect);
   }
 
+
  protected:
   bool cancel_clicked_;
   bool try_again_clicked_;
   bool focus_changed_;
   scoped_refptr<SpeechRecognitionBubbleController> controller_;
 
   static const int kBubbleSessionId;
   static SpeechRecognitionBubbleControllerTest* test_fixture_;
 };
 
@@ skipping 41 matching lines @@
 
   controller_->CreateBubble(kBubbleSessionId, 1, 1, gfx::Rect(1, 1));
   base::RunLoop().RunUntilIdle();
   EXPECT_FALSE(cancel_clicked_);
   EXPECT_TRUE(try_again_clicked_);
   EXPECT_FALSE(focus_changed_);
   controller_->CloseBubble();
 }
 
 }  // namespace speech