Remove implicit conversions from scoped_refptr to T* in chrome/browser/apps/

chrome/browser/apps/drive/drive_app_converter_browsertest.cc

 // Copyright 2014 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/apps/drive/drive_app_converter.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 77 matching lines @@
                                document_icons,
                                kAppName,
                                GURL(kAppUrl),
                                true);
   }
 
   const DriveAppConverter* converter() const { return converter_.get(); }
 
  private:
   void ConverterFinished(const DriveAppConverter* converter, bool success) {
-    if (runner_)
+    if (runner_.get())
       runner_->Quit();
   }
 
   scoped_ptr<DriveAppConverter> converter_;
   scoped_refptr<content::MessageLoopRunner> runner_;
 
   DISALLOW_COPY_AND_ASSIGN(DriveAppConverterTest);
 };
 
 IN_PROC_BROWSER_TEST_F(DriveAppConverterTest, GoodApp) {
@@ skipping 41 matching lines @@
   InstallAndWaitFinish(GetTestDriveApp());
   const Extension* second_install = converter()->extension();
   ASSERT_TRUE(second_install != NULL);
   EXPECT_FALSE(converter()->is_new_install());
 
   // Two different app instances.
   ASSERT_NE(first_install, second_install);
   EXPECT_EQ(first_install_id, second_install->id());
   EXPECT_GE(second_install->version()->CompareTo(first_install_version), 0);
 }