DevTools: use per-LocalFrame instrumenting agents instead of per-Page ones.

Source/core/inspector/InspectorTraceEvents.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef InspectorTraceEvents_h
 #define InspectorTraceEvents_h
 
 #include "core/css/CSSSelector.h"
 #include "platform/EventTracer.h"
 #include "platform/TraceEvent.h"
@@ skipping 259 matching lines @@
 class InspectorTimeStampEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(ExecutionContext*, const String& message);
 };
 
 class InspectorTracingSessionIdForWorkerEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const String& sessionId, int workerId, WorkerThread*);
 };
 
-class InspectorTracingStartedInPage {
+class InspectorTracingStartedInFrame {
 public:
-    static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const String& sessionId, Page*);
+    static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const String& sessionId, LocalFrame*);
 };
 
 class InspectorSetLayerTreeId {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const String& sessionId, int layerTreeId);
 };
 
 class InspectorBeginFrameEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(int frameId);
 };
 
 class InspectorAnimationEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const AnimationPlayer&);
 };
 
 class InspectorAnimationStateEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const AnimationPlayer&);
 };
 
 } // namespace blink
 
 
 #endif // !defined(InspectorTraceEvents_h)