Worker: Connect UseCounter to workers and worklets

third_party/WebKit/Source/core/workers/MainThreadWorkletGlobalScope.cpp

Index: third_party/WebKit/Source/core/workers/MainThreadWorkletGlobalScope.cpp
diff --git a/third_party/WebKit/Source/core/workers/MainThreadWorkletGlobalScope.cpp b/third_party/WebKit/Source/core/workers/MainThreadWorkletGlobalScope.cpp
index 1f787aa1030e0eaf51d549c5f9a25559122d9831..7562a80bab29999777244b5302e0b320b2f8909a 100644
--- a/third_party/WebKit/Source/core/workers/MainThreadWorkletGlobalScope.cpp
+++ b/third_party/WebKit/Source/core/workers/MainThreadWorkletGlobalScope.cpp
@@ -6,6 +6,7 @@
 
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "bindings/core/v8/WorkerOrWorkletScriptController.h"
+#include "core/frame/Deprecation.h"
 #include "core/frame/FrameConsole.h"
 #include "core/frame/LocalFrame.h"
 #include "core/inspector/MainThreadDebugger.h"
@@ -23,6 +24,20 @@ MainThreadWorkletGlobalScope::MainThreadWorkletGlobalScope(
 
 MainThreadWorkletGlobalScope::~MainThreadWorkletGlobalScope() {}
 
+void MainThreadWorkletGlobalScope::countFeature(
+    UseCounter::Feature feature) const {
+  WorkletGlobalScope::countFeature(feature);
+  // TODO(nhiroki): Support UseCounter for main thread worklets.
+  // (https://crbug.com/667357)

[falken, 2016/12/02 08:54:49]

It's hard to understand the TODO at first but the CL description has a good one.
How about:

// A parent document is on the same thread, so just record API use in the
document's UseCounter.
// TODO(nhiroki): Support UseCounter for main thread worklets.
https://crbug.com/667357
WorkletGlobalScope::countFeature(feature);

[nhiroki, 2016/12/05 04:49:01]

Done.

+}
+
+void MainThreadWorkletGlobalScope::countDeprecation(
+    UseCounter::Feature feature) const {
+  WorkletGlobalScope::countDeprecation(feature);

[falken, 2016/12/02 08:54:49]

ditto

[nhiroki, 2016/12/05 04:49:01]

Done.

+  // TODO(nhiroki): Support UseCounter for main thread worklets.
+  // (https://crbug.com/667357)
+}
+
 WorkerThread* MainThreadWorkletGlobalScope::thread() const {
   NOTREACHED();
   return nullptr;