Oilpan: Prepare moving InspectorController and InspectorAgents to oilpan.

Source/core/inspector/InspectorPageAgent.cpp

Index: Source/core/inspector/InspectorPageAgent.cpp
diff --git a/Source/core/inspector/InspectorPageAgent.cpp b/Source/core/inspector/InspectorPageAgent.cpp
index f84cbf147b87adddba6c0f838daccbdddc18db22..f3a37304ac04805d515d8f2590b49309de5ade32 100644
--- a/Source/core/inspector/InspectorPageAgent.cpp
+++ b/Source/core/inspector/InspectorPageAgent.cpp
@@ -270,9 +270,9 @@ bool InspectorPageAgent::dataContent(const char* data, unsigned size, const Stri
     return decodeBuffer(data, size, textEncodingName, result);
 }
 
-PassOwnPtr<InspectorPageAgent> InspectorPageAgent::create(Page* page, InjectedScriptManager* injectedScriptManager, InspectorClient* client, InspectorOverlay* overlay)
+PassOwnPtrWillBeRawPtr<InspectorPageAgent> InspectorPageAgent::create(Page* page, InjectedScriptManager* injectedScriptManager, InspectorClient* client, InspectorOverlay* overlay)
 {
-    return adoptPtr(new InspectorPageAgent(page, injectedScriptManager, client, overlay));
+    return adoptPtrWillBeNoop(new InspectorPageAgent(page, injectedScriptManager, client, overlay));
 }
 
 // static
@@ -1344,5 +1344,11 @@ void InspectorPageAgent::setShowViewportSizeOnResize(ErrorString*, bool show, co
     m_state->setBoolean(PageAgentState::showGridOnResize, showGrid && *showGrid);
 }
 
+void InspectorPageAgent::trace(Visitor* visitor)
+{
+    visitor->trace(m_page);
+    InspectorBaseAgent::trace(visitor);
+}
+
 } // namespace WebCore