Clean up ResourceHandler API.

content/browser/loader/throttling_resource_handler.cc

Index: content/browser/loader/throttling_resource_handler.cc
diff --git a/content/browser/loader/throttling_resource_handler.cc b/content/browser/loader/throttling_resource_handler.cc
index 8bb54467e2b9455e823ad115279fd56731a5ba3f..23f77da90cea7eaecbd1151be2187216a04e7697 100644
--- a/content/browser/loader/throttling_resource_handler.cc
+++ b/content/browser/loader/throttling_resource_handler.cc
@@ -4,7 +4,7 @@
 
 #include "content/browser/loader/throttling_resource_handler.h"
 
-#include "content/public/browser/resource_request_info.h"
+#include "content/browser/loader/resource_request_info_impl.h"
 #include "content/public/browser/resource_throttle.h"
 #include "content/public/common/resource_response.h"
 
@@ -14,9 +14,8 @@ ThrottlingResourceHandler::ThrottlingResourceHandler(
     scoped_ptr<ResourceHandler> next_handler,
     net::URLRequest* request,
     ScopedVector<ResourceThrottle> throttles)
-    : LayeredResourceHandler(next_handler.Pass()),
+    : LayeredResourceHandler(request, next_handler.Pass()),
       deferred_stage_(DEFERRED_NONE),
-      request_(request),
       throttles_(throttles.Pass()),
       index_(0),
       cancelled_by_resource_throttle_(false) {
@@ -141,8 +140,7 @@ void ThrottlingResourceHandler::ResumeStart() {
   deferred_url_ = GURL();
 
   bool defer = false;
-  const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request_);
-  if (!OnWillStart(info->GetRequestID(), url, &defer)) {
+  if (!OnWillStart(GetRequestID(), url, &defer)) {
     controller()->Cancel();
   } else if (!defer) {
     controller()->Resume();
@@ -158,9 +156,7 @@ void ThrottlingResourceHandler::ResumeRedirect() {
   deferred_response_.swap(response);
 
   bool defer = false;
-  const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request_);
-  if (!OnRequestRedirected(info->GetRequestID(), new_url, response.get(),
-                           &defer)) {
+  if (!OnRequestRedirected(GetRequestID(), new_url, response.get(), &defer)) {
     controller()->Cancel();
   } else if (!defer) {
     controller()->Resume();
@@ -174,8 +170,7 @@ void ThrottlingResourceHandler::ResumeResponse() {
   deferred_response_.swap(response);
 
   bool defer = false;
-  const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request_);
-  if (!OnResponseStarted(info->GetRequestID(), response.get(), &defer)) {
+  if (!OnResponseStarted(GetRequestID(), response.get(), &defer)) {
     controller()->Cancel();
   } else if (!defer) {
     controller()->Resume();