[worklets] Introduce ThreadedWorkletMessagingProxy and AnimationWorkletMessagaingProxy.

third_party/WebKit/Source/modules/webaudio/AudioWorklet.cpp

Index: third_party/WebKit/Source/modules/webaudio/AudioWorklet.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/AudioWorklet.cpp b/third_party/WebKit/Source/modules/webaudio/AudioWorklet.cpp
index 093be8c9deb830004c4f71f33982ae2657be66f1..ac608e8015be0ced652856ecd35bb1d6f6498fb9 100644
--- a/third_party/WebKit/Source/modules/webaudio/AudioWorklet.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/AudioWorklet.cpp
@@ -6,7 +6,6 @@
 
 #include "bindings/core/v8/V8Binding.h"
 #include "core/frame/LocalFrame.h"
-#include "core/workers/ThreadedWorkletGlobalScopeProxy.h"

[hongchan, 2016/09/09 17:45:30]

I am not sure what this change means. Can you elaborate? So
AudioWorkletGlobalScope does not need to a proxy? Why?

[ikilpatrick, 2016/09/12 17:29:07]

I've reverted these changes. Basically it needs a proxy; but I was going to
remove ThreadedWorkletGlobalScopeProxy.h in this patch.

I've now added a TODO at the top of ThreadedWorkletGlobalScopeProxy to remove
that file :).

 
 namespace blink {
 
@@ -20,7 +19,6 @@ AudioWorklet* AudioWorklet::create(LocalFrame* frame)
 
 AudioWorklet::AudioWorklet(LocalFrame* frame)
     : Worklet(frame)
-    , m_workletGlobalScopeProxy(new ThreadedWorkletGlobalScopeProxy())
 {
 }
 
@@ -30,7 +28,7 @@ AudioWorklet::~AudioWorklet()
 
 WorkletGlobalScopeProxy* AudioWorklet::workletGlobalScopeProxy() const
 {
-    return m_workletGlobalScopeProxy.get();
+    return nullptr;
 }
 
 DEFINE_TRACE(AudioWorklet)