NOCOMMIT: Blink tracing now uses base

third_party/WebKit/Source/bindings/core/v8/V8Binding.h

Index: third_party/WebKit/Source/bindings/core/v8/V8Binding.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8Binding.h b/third_party/WebKit/Source/bindings/core/v8/V8Binding.h
index 21d913f7e50111fc43da8fc23b1b04daea2af229..57f1e7e3fab86ae646d6e3e098d470817899766f 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8Binding.h
+++ b/third_party/WebKit/Source/bindings/core/v8/V8Binding.h
@@ -32,6 +32,7 @@
 #ifndef V8Binding_h
 #define V8Binding_h
 
+#include "base/trace_event/trace_event.h"
 #include "bindings/core/v8/DOMDataStore.h"
 #include "bindings/core/v8/DOMWrapperWorld.h"
 #include "bindings/core/v8/ExceptionMessages.h"
@@ -74,10 +75,6 @@ struct V8TypeOf {
     typedef void Type;
 };
 
-namespace TraceEvent {
-class ConvertableToTraceFormat;
-}
-
 // Helpers for throwing JavaScript TypeErrors for arity mismatches.
 CORE_EXPORT void setArityTypeError(ExceptionState&, const char* valid, unsigned provided);
 CORE_EXPORT v8::Local<v8::Value> createMinimumArityTypeErrorForMethod(v8::Isolate*, const char* method, const char* type, unsigned expected, unsigned provided);
@@ -1081,7 +1078,7 @@ private:
     mutable v8::Local<v8::Function> m_function;
 };
 
-PassRefPtr<TraceEvent::ConvertableToTraceFormat> devToolsTraceEventData(v8::Isolate*, ExecutionContext*, v8::Local<v8::Function>);
+scoped_refptr<base::trace_event::ConvertableToTraceFormat> devToolsTraceEventData(v8::Isolate*, ExecutionContext*, v8::Local<v8::Function>);
 
 // Callback functions used by generated code.
 CORE_EXPORT void v8ConstructorAttributeGetter(v8::Local<v8::Name> propertyName, const v8::PropertyCallbackInfo<v8::Value>&);