ResourceScheduler should use renderer notifications instead of MRUCache to track renderers.

content/browser/renderer_host/render_widget_helper.cc

 // Copyright (c) 2012 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 "content/browser/renderer_host/render_widget_helper.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/lazy_instance.h"
 #include "base/posix/eintr_wrapper.h"
@@ skipping 109 matching lines @@
 
 // static
 RenderWidgetHelper* RenderWidgetHelper::FromProcessHostID(
     int render_process_host_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   WidgetHelperMap::const_iterator ci = g_widget_helpers.Get().find(
       render_process_host_id);
   return (ci == g_widget_helpers.Get().end())? NULL : ci->second;
 }
 
-void RenderWidgetHelper::CancelResourceRequests(int render_widget_id) {
-  if (render_process_id_ == -1)
-    return;
-
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      base::Bind(&RenderWidgetHelper::OnCancelResourceRequests,
-                 this,
-                 render_widget_id));
-}
-
 void RenderWidgetHelper::SimulateSwapOutACK(
     const ViewMsg_SwapOut_Params& params) {
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&RenderWidgetHelper::OnSimulateSwapOutACK,
                  this,
                  params));
 }
 
 bool RenderWidgetHelper::WaitForBackingStoreMsg(
@@ skipping 93 matching lines @@
 void RenderWidgetHelper::OnDispatchBackingStoreMsg(
     BackingStoreMsgProxy* proxy) {
   OnDiscardBackingStoreMsg(proxy);
 
   // It is reasonable for the host to no longer exist.
   RenderProcessHost* host = RenderProcessHost::FromID(render_process_id_);
   if (host)
     host->OnMessageReceived(proxy->message());
 }
 
-void RenderWidgetHelper::OnCancelResourceRequests(
-    int render_widget_id) {
-  resource_dispatcher_host_->CancelRequestsForRoute(
-      render_process_id_, render_widget_id);
-}
-
 void RenderWidgetHelper::OnSimulateSwapOutACK(
     const ViewMsg_SwapOut_Params& params) {
   resource_dispatcher_host_->OnSimulateSwapOutACK(params);
 }
 
 void RenderWidgetHelper::CreateNewWindow(
     const ViewHostMsg_CreateWindow_Params& params,
     bool no_javascript_access,
     base::ProcessHandle render_process,
     int* route_id,
@@ skipping 133 matching lines @@
        i = allocated_dibs_.begin(); i != allocated_dibs_.end(); ++i) {
     if (HANDLE_EINTR(close(i->second)) < 0)
       PLOG(ERROR) << "close: " << i->first;
   }
 
   allocated_dibs_.clear();
 }
 #endif
 
 }  // namespace content