Add a ResourceScheduler to ResourceDispatcherHost.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index a9d26ff50c011def86cdde1d22d276b9f61781cc..0e781f62d327eba2bbb6c852d190aa0e329ccdcd 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -56,7 +56,10 @@
 #include "content/browser/hyphenator/hyphenator_message_filter.h"
 #include "content/browser/in_process_webkit/indexed_db_context_impl.h"
 #include "content/browser/in_process_webkit/indexed_db_dispatcher_host.h"
+#include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader/resource_message_filter.h"
+#include "content/browser/loader/resource_scheduler.h"
+#include "content/browser/loader/resource_scheduler_filter.h"
 #include "content/browser/mime_registry_message_filter.h"
 #include "content/browser/plugin_service_impl.h"
 #include "content/browser/profiler_message_filter.h"
@@ -479,6 +482,7 @@ bool RenderProcessHostImpl::Init() {
 
 void RenderProcessHostImpl::CreateMessageFilters() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  channel_->AddFilter(new ResourceSchedulerFilter(GetID()));
   MediaObserver* media_observer =
       GetContentClient()->browser()->GetMediaObserver();
   // Add BrowserPluginMessageFilter to ensure it gets the first stab at messages
@@ -1104,6 +1108,10 @@ bool RenderProcessHostImpl::IgnoreInputEvents() const {
 void RenderProcessHostImpl::Attach(RenderWidgetHost* host,
                                    int routing_id) {
   render_widget_hosts_.AddWithID(host, routing_id);
+  if (ResourceDispatcherHostImpl::Get()) {
+    ResourceDispatcherHostImpl::Get()->scheduler()->OnCreate(

[darin (slow to review), 2012/12/14 22:16:28]

Isn't there some potential raciness here?  I could imagine possibly missing the
first request made by the renderer.  Maybe you should be intercepting something
on the IO thread related to RenderView setup?

[James Simonsen, 2012/12/15 02:58:57]

Done.

+        GetID(), routing_id);
+  }
 }
 
 void RenderProcessHostImpl::Release(int routing_id) {
@@ -1455,6 +1463,10 @@ void RenderProcessHostImpl::ProcessDied(bool already_dead) {
         ViewHostMsg_RenderViewGone(iter.GetCurrentKey(),
                                    static_cast<int>(status),
                                    exit_code));
+    if (ResourceDispatcherHostImpl::Get()) {
+      ResourceDispatcherHostImpl::Get()->scheduler()->OnDestroy(
+          GetID(), iter.GetCurrentKey());
+    }
     iter.Advance();
   }