Revert of cc: Delete all the RendererCapabilities.

cc/trees/threaded_channel.cc

Index: cc/trees/threaded_channel.cc
diff --git a/cc/trees/threaded_channel.cc b/cc/trees/threaded_channel.cc
index 652aa68dd8fe5076689104cab59b4ed79cf1d4e6..113da6fd2cff501eb488b79915d8ffb0beeece53 100644
--- a/cc/trees/threaded_channel.cc
+++ b/cc/trees/threaded_channel.cc
@@ -199,6 +199,14 @@
                             impl().proxy_main_weak_ptr));
 }
 
+void ThreadedChannel::SetRendererCapabilitiesMainCopy(
+    const RendererCapabilities& capabilities) {
+  DCHECK(IsImplThread());
+  MainThreadTaskRunner()->PostTask(
+      FROM_HERE, base::Bind(&ProxyMain::SetRendererCapabilities,
+                            impl().proxy_main_weak_ptr, capabilities));
+}
+
 void ThreadedChannel::BeginMainFrameNotExpectedSoon() {
   DCHECK(IsImplThread());
   MainThreadTaskRunner()->PostTask(
@@ -235,11 +243,13 @@
                             impl().proxy_main_weak_ptr));
 }
 
-void ThreadedChannel::DidInitializeOutputSurface(bool success) {
+void ThreadedChannel::DidInitializeOutputSurface(
+    bool success,
+    const RendererCapabilities& capabilities) {
   DCHECK(IsImplThread());
   MainThreadTaskRunner()->PostTask(
       FROM_HERE, base::Bind(&ProxyMain::DidInitializeOutputSurface,
-                            impl().proxy_main_weak_ptr, success));
+                            impl().proxy_main_weak_ptr, success, capabilities));
 }
 
 void ThreadedChannel::DidCompletePageScaleAnimation() {