[TimeZoneMonitor] Decouple renderer side impl from content to blink.

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

 /*
  * Copyright (C) 2014 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 16 matching lines @@
  * (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/heap/Heap.h"
 #include <base/bind.h>
 #include <base/test/launcher/unit_test_launcher.h>
 #include <base/test/test_suite.h>
 #include <base/time/time.h>
 #include <content/test/blink_test_environment.h>
+#include <mojo/edk/embedder/embedder.h>
 #include <string.h>
 
 class BlinkTestEnvironmentScope {
  public:
   BlinkTestEnvironmentScope() { content::SetUpBlinkTestEnvironment(); }
   ~BlinkTestEnvironmentScope() { content::TearDownBlinkTestEnvironment(); }
 };
 
 int runHelper(base::TestSuite* testSuite) {
+  mojo::edk::Init();

[haraken, 2016/10/27 16:13:15]

Do we need this? I don't think platform/heap/*tests are using Mojo.

If we need to add this here, I guess you also need to add it to other
RunAllTests.cpp.

[leonhsl(Using Gerrit), 2016/10/28 05:59:06]

At line42 in this one RunAllTests.cpp, it is calling
content::SetUpBlinkTestEnvironment(), which will create a message loop and then
call blink::initialize(), which will initialize the mojo
stuff(TimeZoneMonitorClient), this means mojo edk MUST be ready before that.
For other 2 RunAllTests.cpp hitting such case, they've already had the mojo edk
init path. They're:
third_party/WebKit/Source/platform/testing/BlinkFuzzerTestSupport.cpp and
third_party/WebKit/Source/web/tests/RunAllTests.cpp. 
Further more, because https://codereview.chromium.org/2453933003 has been
landed, mojo edk init path has been centralized, this CL does not need to add
mojo::edk::Init() here. Reverted these changes for blink heap unit tests by
ps#20.

   BlinkTestEnvironmentScope blinkTestEnvironment;
   blink::ThreadState* currentThreadState = blink::ThreadState::current();
   currentThreadState->registerTraceDOMWrappers(nullptr, nullptr, nullptr,
                                                nullptr);
   int result = testSuite->Run();
   currentThreadState->collectAllGarbage();
   return result;
 }
 
 int main(int argc, char** argv) {
   base::TestSuite testSuite(argc, argv);
   return base::LaunchUnitTests(
       argc, argv, base::Bind(runHelper, base::Unretained(&testSuite)));
 }