Enable cc_unittests in component build

cc/test/run_all_unittests.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/test/test_suite.h>
+#include "base/message_loop.h"
+#include "base/rand_util.h"
+#include "base/threading/thread_local_storage.h"
+#include "base/test/test_suite.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/Platform.h"
+#include "webkit/compositor_bindings/web_compositor_support_impl.h"
+#include "webkit/glue/webthread_impl.h"
 #include <gmock/gmock.h>
 
-#if defined(USE_LIBCC_FOR_COMPOSITOR)
-#include <webkit/support/webkit_support.h>
-#endif
+#include "base/debug/trace_event_impl.h"
+
+using webkit_glue::WebThreadImplForMessageLoop;
+
+class TestPlatform : public WebKit::Platform {
+ public:
+  virtual WebKit::WebCompositorSupport* compositorSupport() {
+    return &compositor_support_;
+  }
+
+  virtual void cryptographicallyRandomValues(
+      unsigned char* buffer, size_t length) {
+    base::RandBytes(buffer, length);
+  }
+
+  virtual WebKit::WebThread* createThread(const char* name) {
+    return new webkit_glue::WebThreadImpl(name);
+  }
+
+  virtual WebKit::WebThread* currentThread() {
+    webkit_glue::WebThreadImplForMessageLoop* thread =
+        static_cast<WebThreadImplForMessageLoop*>(current_thread_slot_.Get());
+    if (thread)
+      return (thread);
+
+    scoped_refptr<base::MessageLoopProxy> message_loop =
+        base::MessageLoopProxy::current();
+    if (!message_loop)
+      return NULL;
+
+    thread = new WebThreadImplForMessageLoop(message_loop);
+    current_thread_slot_.Set(thread);
+    return thread;
+  }
+
+  virtual double currentTime() {
+    return base::Time::Now().ToDoubleT();
+  }
+
+  virtual double monotonicallyIncreasingTime() {
+    return base::TimeTicks::Now().ToInternalValue() /
+        static_cast<double>(base::Time::kMicrosecondsPerSecond);
+  }
+
+ private:
+  base::ThreadLocalStorage::Slot current_thread_slot_;
+  webkit::WebCompositorSupportImpl compositor_support_;
+};
 
 int main(int argc, char** argv) {
   ::testing::InitGoogleMock(&argc, argv);
   TestSuite testSuite(argc, argv);
-#if defined(USE_LIBCC_FOR_COMPOSITOR)
-  webkit_support::SetUpTestEnvironmentForUnitTests();
-#endif
+  TestPlatform platform;
+  MessageLoop message_loop;
+  WebKit::Platform::initialize(&platform);
   int result = testSuite.Run();
-#if defined(USE_LIBCC_FOR_COMPOSITOR)
-  webkit_support::TearDownTestEnvironment();
-#endif
+  WebKit::Platform::shutdown();
 
   return result;
 }