No need to call InitGoogleMock() ourselves.

Source/web/tests/RunAllTests.cpp

Index: Source/web/tests/RunAllTests.cpp
diff --git a/Source/web/tests/RunAllTests.cpp b/Source/web/tests/RunAllTests.cpp
index e2bca3c56b7c975ecaaae6c19da803b76dd50b23..e2b7b3a4e60a033bff76473d0653f328285e5a38 100644
--- a/Source/web/tests/RunAllTests.cpp
+++ b/Source/web/tests/RunAllTests.cpp
@@ -43,8 +43,6 @@
 #include "web/tests/WebUnitTests.h"
 #endif
 
-#include <gmock/gmock.h>
-
 // TestSuite must be created before SetUpTestEnvironment so it performs
 // initializations needed by WebKit support. This is slightly complicated by the
 // fact that chromium multi-dll build requires that the TestSuite object be created
@@ -58,7 +56,6 @@ int main(int argc, char** argv)
     content::TearDownEnvironmentForWebKitUnitTests();
     blink::DeleteTestSuite();
 #else
-    ::testing::InitGoogleMock(&argc, argv);
     TestSuite testSuite(argc, argv);
     content::SetUpTestEnvironmentForWebKitUnitTests();
     int result = testSuite.Run();