WebWaitableEvent: implement new API with ResetPolicy and InitialState arguments

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 e7a7be110b634835886a6c1dd799371179966b58..c1ffa56b033c463340991b0f02c8d40f08b92dc0 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -90,11 +90,16 @@ namespace {
 
 class WebWaitableEventImpl : public blink::WebWaitableEvent {
  public:
-  WebWaitableEventImpl() : impl_(new base::WaitableEvent(false, false)) {}
-  virtual ~WebWaitableEventImpl() {}
+  WebWaitableEventImpl(Reset reset, InitialState state) {
+    bool manual_reset = reset == Reset::Manual;
+    bool initially_signaled = state == InitialState::Signaled;
+    impl_.reset(new base::WaitableEvent(manual_reset, initially_signaled));
+  }
+  ~WebWaitableEventImpl() override {}
 
-  virtual void wait() { impl_->Wait(); }
-  virtual void signal() { impl_->Signal(); }
+  void reset() override { impl_->Reset(); }

[Takashi Toyoshima, 2015/07/09 08:18:32]

Oh, I should not use override in blink API.
I'll revert this part.

+  void wait() override { impl_->Wait(); }
+  void signal() override { impl_->Signal(); }
 
   base::WaitableEvent* impl() {
     return impl_.get();
@@ -539,8 +544,17 @@ void BlinkPlatformImpl::yieldCurrentThread() {
   base::PlatformThread::YieldCurrentThread();
 }
 
+// TODO(toyoshim): Remove no arguments version after the transition.
 blink::WebWaitableEvent* BlinkPlatformImpl::createWaitableEvent() {
-  return new WebWaitableEventImpl();
+  return new WebWaitableEventImpl(
+    blink::WebWaitableEvent::Reset::Auto,
+    blink::WebWaitableEvent::InitialState::NonSignaled);
+}
+
+blink::WebWaitableEvent* BlinkPlatformImpl::createWaitableEvent(
+    blink::WebWaitableEvent::Reset reset,
+    blink::WebWaitableEvent::InitialState state) {
+  return new WebWaitableEventImpl(reset, state);
 }
 
 blink::WebWaitableEvent* BlinkPlatformImpl::waitMultipleEvents(