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

Source/core/inspector/InspectorDOMStorageAgent.cpp

Index: Source/core/inspector/InspectorDOMStorageAgent.cpp
diff --git a/Source/core/inspector/InspectorDOMStorageAgent.cpp b/Source/core/inspector/InspectorDOMStorageAgent.cpp
index ee057a76dfb217951b024b8b5d2d6a8b7496cddd..3bd0d98886f8f4c34ff61abced2fe3e7a3c71fc8 100644
--- a/Source/core/inspector/InspectorDOMStorageAgent.cpp
+++ b/Source/core/inspector/InspectorDOMStorageAgent.cpp
@@ -40,7 +40,6 @@
 #include "core/inspector/InstrumentingAgents.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
-#include "core/page/Page.h"
 #include "core/storage/Storage.h"
 #include "core/storage/StorageNamespace.h"
 #include "core/storage/StorageNamespaceController.h"
@@ -186,9 +185,9 @@ PassRefPtr<TypeBuilder::DOMStorage::StorageId> InspectorDOMStorageAgent::storage
         .setIsLocalStorage(isLocalStorage).release();
 }
 
-void InspectorDOMStorageAgent::didDispatchDOMStorageEvent(const String& key, const String& oldValue, const String& newValue, StorageType storageType, SecurityOrigin* securityOrigin)
+void InspectorDOMStorageAgent::didDispatchDOMStorageEvent(LocalFrame* frame, const String& key, const String& oldValue, const String& newValue, StorageType storageType, SecurityOrigin* securityOrigin)
 {
-    if (!m_frontend || !isEnabled())
+    if (!m_frontend || !isEnabled() || frame != m_pageAgent->inspectedFrame())
         return;
 
     RefPtr<TypeBuilder::DOMStorage::StorageId> id = storageId(securityOrigin, storageType == LocalStorage);
@@ -226,7 +225,7 @@ PassOwnPtrWillBeRawPtr<StorageArea> InspectorDOMStorageAgent::findStorageArea(Er
 
     if (isLocalStorage)
         return StorageNamespace::localStorageArea(frame->document()->securityOrigin());
-    return StorageNamespaceController::from(m_pageAgent->page())->sessionStorage()->storageArea(frame->document()->securityOrigin());
+    return StorageNamespaceController::from(frame->page())->sessionStorage()->storageArea(frame->document()->securityOrigin());
 }
 
 } // namespace blink