Pass WebKit priority changes and parsing messages up to the browser process.

content/common/resource_dispatcher.cc

Index: content/common/resource_dispatcher.cc
diff --git a/content/common/resource_dispatcher.cc b/content/common/resource_dispatcher.cc
index 63a794cf9e2dc909296287bda127381223c02705..ecb03aa89a64f6422976ac9503bce22ced1ba896 100644
--- a/content/common/resource_dispatcher.cc
+++ b/content/common/resource_dispatcher.cc
@@ -62,6 +62,7 @@ class IPCResourceLoaderBridge : public ResourceLoaderBridge {
   virtual bool Start(Peer* peer);
   virtual void Cancel();
   virtual void SetDefersLoading(bool value);
+  virtual void DidChangePriority(WebKit::WebURLRequest::Priority new_priority);
   virtual void SyncLoad(SyncLoadResponse* response);
 
  private:
@@ -193,6 +194,16 @@ void IPCResourceLoaderBridge::SetDefersLoading(bool value) {
   dispatcher_->SetDefersLoading(request_id_, value);
 }
 
+void IPCResourceLoaderBridge::DidChangePriority(
+    WebKit::WebURLRequest::Priority new_priority) {
+  if (request_id_ < 0) {
+    NOTREACHED() << "Trying to change priority of an unstarted request";
+    return;
+  }
+
+  dispatcher_->DidChangePriority(routing_id_, request_id_, new_priority);
+}
+
 void IPCResourceLoaderBridge::SyncLoad(SyncLoadResponse* response) {
   if (request_id_ != -1) {
     NOTREACHED() << "Starting a request twice";
@@ -549,6 +560,14 @@ void ResourceDispatcher::SetDefersLoading(int request_id, bool value) {
   }
 }
 
+void ResourceDispatcher::DidChangePriority(
+    int routing_id, int request_id,
+    WebKit::WebURLRequest::Priority new_priority) {
+  DCHECK(ContainsKey(pending_requests_, request_id));
+  message_sender()->Send(new ResourceHostMsg_DidChangePriority(
+      routing_id, request_id, new_priority));
+}
+
 ResourceDispatcher::PendingRequestInfo::PendingRequestInfo()
     : peer(NULL),
       resource_type(ResourceType::SUB_RESOURCE),