Implement blink::Platform::yieldCurrentThread()

content/child/blink_platform_impl.cc

Index: content/child/blink_platform_impl.cc
diff --git a/content/child/blink_platform_impl.cc b/content/child/blink_platform_impl.cc
index dc71511365116f2523697fe44f9a2cfe3eba1da0..85a391cde8b0bdca7175c5dc8ba41102cc618991 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -25,6 +25,7 @@
 #include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/sys_info.h"
+#include "base/threading/platform_thread.h"
 #include "base/time/time.h"
 #include "blink/public/resources/grit/blink_resources.h"
 #include "content/app/resources/grit/content_resources.h"
@@ -494,6 +495,10 @@ blink::WebThread* BlinkPlatformImpl::currentThread() {
   return thread;
 }
 
+void BlinkPlatformImpl::yieldCurrentThread() {
+  base::PlatformThread::YieldCurrentThread();
+}
+
 blink::WebWaitableEvent* BlinkPlatformImpl::createWaitableEvent() {
   return new WebWaitableEventImpl();
 }