[compositorworker] Register compositor proxies with proxy client

third_party/WebKit/Source/core/dom/CompositorProxyClient.h

Index: third_party/WebKit/Source/core/dom/CompositorProxyClient.h
diff --git a/third_party/WebKit/Source/core/dom/CompositorProxyClient.h b/third_party/WebKit/Source/core/dom/CompositorProxyClient.h
index 9f9cea1630df55fab6cf18a20aba27a882066311..d5d5ca9615301f163cb27066698f0b20999bf55e 100644
--- a/third_party/WebKit/Source/core/dom/CompositorProxyClient.h
+++ b/third_party/WebKit/Source/core/dom/CompositorProxyClient.h
@@ -30,6 +30,12 @@ public:
 
     virtual void setGlobalScope(WorkerGlobalScope*) = 0;
     virtual void requestAnimationFrame() = 0;
+    virtual void registerCompositorProxy(CompositorProxy*) = 0;
+    // It is not guaranteed to receive an unregister call for every registered
+    // proxy. In fact we only receive one when a proxy is explicitly
+    // disconnected otherwise we rely on oilpan collection process to remove the
+    // proxy from our weak map.

[jbroman, 2016/06/13 17:15:05]

There is no longer a weak map. Either be vague ("to remove the weak reference to
the proxy" or similar) or update it to say "set".

[majidvp, 2016/06/13 17:21:42]

Done.

+    virtual void unregisterCompositorProxy(CompositorProxy*) = 0;
 };
 
 CORE_EXPORT void provideCompositorProxyClientTo(WorkerClients*, CompositorProxyClient*);