[RDHI] Refactored blocked_loaders_map_ to key by render frame route id

content/public/browser/loader_io_thread_notifier.cc

Index: content/public/browser/loader_io_thread_notifier.cc
diff --git a/content/public/browser/loader_io_thread_notifier.cc b/content/public/browser/loader_io_thread_notifier.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4a18de8bff4deabe0f66536edcd0f11c837f3ce5
--- /dev/null
+++ b/content/public/browser/loader_io_thread_notifier.cc
@@ -0,0 +1,51 @@
+// Copyright 2015 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 "base/callback.h"
+#include "content/browser/frame_host/render_frame_host_impl.h"
+#include "content/browser/loader/global_routing_id.h"
+#include "content/browser/loader/resource_dispatcher_host_impl.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/loader_io_thread_notifier.h"
+
+namespace content {
+
+namespace {
+
+void NotifyForFrameOnIO(
+    base::Callback<void(ResourceDispatcherHostImpl*,
+                        const GlobalFrameRoutingId&)> frame_callback,
+    const GlobalFrameRoutingId& routing_id) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  ResourceDispatcherHostImpl* rdh = ResourceDispatcherHostImpl::Get();
+  if (rdh)
+    frame_callback.Run(rdh, routing_id);
+}
+
+}  // namespace
+
+// static
+void LoaderIOThreadNotifier::BlockRequestsForFrame(
+    RenderFrameHost* frame_host) {
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      base::Bind(&NotifyForFrameOnIO,
+                 base::Bind(&ResourceDispatcherHostImpl::BlockRequestsForFrame),
+                 static_cast<RenderFrameHostImpl*>(frame_host)
+                     ->GetGlobalFrameRoutingId()));
+}
+
+void LoaderIOThreadNotifier::ResumeBlockedRequestsForFrame(
+    RenderFrameHost* frame_host) {
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      base::Bind(
+          &NotifyForFrameOnIO,
+          base::Bind(
+              &ResourceDispatcherHostImpl::ResumeBlockedRequestsForFrame),
+          static_cast<RenderFrameHostImpl*>(frame_host)
+              ->GetGlobalFrameRoutingId()));
+}
+
+}  // namespace content