Blink Platform: Remove time functions from Platform.

third_party/WebKit/Source/platform/testing/RunAllTests.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/EventTracer.h"
 #include "platform/HTTPNames.h"
 #include "platform/heap/Heap.h"
 #include "platform/testing/TestingPlatformSupport.h"
 #include "wtf/CryptographicallyRandomNumber.h"
+#include "wtf/CurrentTime.h"
 #include "wtf/MainThread.h"
 #include "wtf/Partitions.h"
 #include "wtf/WTF.h"
 #include <base/bind.h>
 #include <base/bind_helpers.h>
 #include <base/test/launcher/unit_test_launcher.h>
 #include <base/test/test_suite.h>
 #include <cc/blink/web_compositor_support_impl.h>
 #include <string.h>
 
-static double CurrentTime()
-{
-    return 0.0;
-}
-
 static void AlwaysZeroNumberSource(unsigned char* buf, size_t len)
 {
     memset(buf, '\0', len);
 }
 
 static int runTestSuite(base::TestSuite* testSuite)
 {
     int result = testSuite->Run();
     blink::Heap::collectAllGarbage();
     return result;
 }
 
 int main(int argc, char** argv)
 {
     WTF::setRandomSource(AlwaysZeroNumberSource);
-    WTF::initialize(CurrentTime, CurrentTime, CurrentTime, nullptr, nullptr);
+    WTF::setTimeFunctionsForTesting([]() -> double {

[haraken, 2015/12/28 02:24:27]

Nit: I've never seen Blink using the []()-> syntax. I'd slightly prefer not
using an advanced feature in C++.

[Yuta Kitamura, 2016/01/05 05:31:06]

I think mine is clearer and simpler, but I'd defer this
to Elliott. This is C++11's lambda syntax, just like
writing "function () { ... }" in JavaScript.

Chromium allows lambdas under certain conditions:
https://chromium-cpp.appspot.com/

+        return 0.0;
+    });
+    WTF::initialize(nullptr, nullptr);
     WTF::initializeMainThread(0);
 
     blink::TestingPlatformSupport::Config platformConfig;
     cc_blink::WebCompositorSupportImpl compositorSupport;
     platformConfig.compositorSupport = &compositorSupport;
     blink::TestingPlatformSupport platform(platformConfig);
 
     blink::Heap::init();
     blink::ThreadState::attachMainThread();
     blink::ThreadState::current()->registerTraceDOMWrappers(nullptr, nullptr);
     blink::EventTracer::initialize();
 
     blink::HTTPNames::init();
 
     base::TestSuite testSuite(argc, argv);
     int result = base::LaunchUnitTests(argc, argv, base::Bind(runTestSuite, base::Unretained(&testSuite)));
 
     blink::ThreadState::detachMainThread();
     blink::Heap::shutdown();
 
     WTF::shutdown();
     return result;
 }