Revert of Use real PlatformSupport in content unit tests

content/public/test/unittest_test_suite.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 "content/public/test/unittest_test_suite.h"
 
 #include "base/logging.h"
 #include "base/rand_util.h"
 #include "base/test/test_suite.h"
-#if !defined(OS_IOS)
-#include "content/test/test_webkit_platform_support.h"
-#endif
+#include "third_party/WebKit/public/platform/Platform.h"
 #include "third_party/WebKit/public/web/WebKit.h"
 
 namespace content {
 
+#if !defined(OS_IOS)
+// A stubbed out WebKit platform support impl.
+class UnitTestTestSuite::UnitTestWebKitPlatformSupport
+    : public blink::Platform {
+ public:
+  UnitTestWebKitPlatformSupport() {}
+  virtual ~UnitTestWebKitPlatformSupport() {}
+  virtual void cryptographicallyRandomValues(unsigned char* buffer,
+                                             size_t length) OVERRIDE {
+    base::RandBytes(buffer, length);
+  }
+  virtual const unsigned char* getTraceCategoryEnabledFlag(
+      const char* categoryName) {
+    // Causes tracing macros to be disabled.
+    static const unsigned char kEnabled = 0;
+    return &kEnabled;
+  }
+};
+#endif  // !OS_IOS
+
 UnitTestTestSuite::UnitTestTestSuite(base::TestSuite* test_suite)
     : test_suite_(test_suite) {
   DCHECK(test_suite);
 #if !defined(OS_IOS)
-  platform_support_.reset(new TestWebKitPlatformSupport);
+  webkit_platform_support_.reset(new UnitTestWebKitPlatformSupport);
+  blink::initialize(webkit_platform_support_.get());
 #endif
 }
 
 UnitTestTestSuite::~UnitTestTestSuite() {
 #if !defined(OS_IOS)
-  platform_support_.reset();
+  blink::shutdown();
 #endif
 }
 
 int UnitTestTestSuite::Run() {
   return test_suite_->Run();
 }
 
 }  // namespace content