Revert of Use real PlatformSupport in content unit tests

content/public/test/unittest_test_suite.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_TEST_UNITTEST_TEST_SUITE_H_
 #define CONTENT_PUBLIC_TEST_UNITTEST_TEST_SUITE_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 
 namespace base {
 class TestSuite;
 }
 
 namespace content {
-class TestWebKitPlatformSupport;
 
 // A special test suite that also initializes WebKit once for all unittests.
 // This is useful for two reasons:
 // 1. It allows the use of some primitive WebKit data types like WebString.
 // 2. Individual unittests should not be initting WebKit on their own, initting
 // it here ensures attempts to do so within an individual test will fail.
 class UnitTestTestSuite {
  public:
    // Takes ownership of |test_suite|.
   explicit UnitTestTestSuite(base::TestSuite* test_suite);
   ~UnitTestTestSuite();
 
   int Run();
 
  private:
   scoped_ptr<base::TestSuite> test_suite_;
 
 #if !defined(OS_IOS)
-  scoped_ptr<TestWebKitPlatformSupport> platform_support_;
+  class UnitTestWebKitPlatformSupport;
+  scoped_ptr<UnitTestWebKitPlatformSupport> webkit_platform_support_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(UnitTestTestSuite);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_UNITTEST_TEST_SUITE_H_