Introduce Platform::setCurrentPlatformForTesting

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

Index: third_party/WebKit/Source/platform/testing/RunAllTests.cpp
diff --git a/third_party/WebKit/Source/platform/testing/RunAllTests.cpp b/third_party/WebKit/Source/platform/testing/RunAllTests.cpp
index 69caa00390fbd3299790d689ec51dd49b77609df..2a3220e0e84829a4a68c26bb6db127be434f9236 100644
--- a/third_party/WebKit/Source/platform/testing/RunAllTests.cpp
+++ b/third_party/WebKit/Source/platform/testing/RunAllTests.cpp
@@ -35,6 +35,7 @@
 #include "platform/HTTPNames.h"
 #include "platform/heap/Heap.h"
 #include "platform/testing/TestingPlatformSupport.h"
+#include "public/platform/Platform.h"
 #include "wtf/CryptographicallyRandomNumber.h"
 #include "wtf/CurrentTime.h"
 #include "wtf/MainThread.h"
@@ -72,6 +73,7 @@ int main(int argc, char** argv)
     WTF::initialize(nullptr);
     WTF::initializeMainThread(0);
 
+    blink::Platform::initialize(nullptr);
     blink::TestingPlatformSupport::Config platformConfig;
     cc_blink::WebCompositorSupportImpl compositorSupport;
     platformConfig.compositorSupport = &compositorSupport;
@@ -96,6 +98,8 @@ int main(int argc, char** argv)
     blink::ThreadState::detachMainThread();
     blink::Heap::shutdown();
 
+    blink::Platform::shutdown();
+
     WTF::shutdown();
     WTF::Partitions::shutdown();
     return result;