Split V8Proxy::retrieveActiveFrame() into two methods.

webkit/glue/devtools/debugger_agent_manager.cc

 // Copyright (c) 2009 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.
 
 #include "config.h"
 
 #include "Frame.h"
 #include "PageGroupLoadDeferrer.h"
 #include "v8_proxy.h"
 #include <wtf/HashSet.h>
@@ skipping 217 matching lines @@
   SendCommandToV8(continue_cmd, new CallerIdWrapper());
 }
 
 // static
 DebuggerAgentImpl* DebuggerAgentManager::FindAgentForCurrentV8Context() {
   if (!attached_agents_) {
     return NULL;
   }
   DCHECK(!attached_agents_->isEmpty());
 
-  WebCore::Frame* frame = WebCore::V8Proxy::retrieveActiveFrame();
+  WebCore::Frame* frame = WebCore::V8Proxy::retrieveFrameForEnteredContext();
   if (!frame) {
     return NULL;
   }
   WebCore::Page* page = frame->page();
   for (AttachedAgentsSet::iterator it = attached_agents_->begin();
        it != attached_agents_->end(); ++it) {
     if ((*it)->GetPage() == page) {
       return *it;
     }
   }
   return NULL;
 }
 
 DebuggerAgentImpl* DebuggerAgentManager::FindDebuggerAgentForToolsAgent(
     int caller_id) {
   for (AttachedAgentsSet::iterator it = attached_agents_->begin();
        it != attached_agents_->end(); ++it) {
     if ((*it)->webdevtools_agent()->host_id() == caller_id) {
       return *it;
     }
   }
   return NULL;
 }