Move core url data manager classes to content.

content/browser/resource_context_impl.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/resource_context_impl.h"
 
 #include "base/logging.h"
 #include "content/browser/fileapi/chrome_blob_storage_context.h"
 #include "content/browser/host_zoom_map_impl.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader/resource_request_info_impl.h"
+#include "content/browser/webui/url_data_manager_backend.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 
 // Key names on ResourceContext.
 static const char* kBlobStorageContextKeyName = "content_blob_storage_context";
 static const char* kHostZoomMapKeyName = "content_host_zoom_map";
+static const char* kURLDataManagerKeyName = "url_data_manager";
 
 using base::UserDataAdapter;
 
 namespace content {
 
 namespace {
 
 class NonOwningZoomData : public base::SupportsUserData::Data {
  public:
   explicit NonOwningZoomData(HostZoomMap* hzm) : host_zoom_map_(hzm) {}
@@ skipping 25 matching lines @@
   return UserDataAdapter<ChromeBlobStorageContext>::Get(
       resource_context, kBlobStorageContextKeyName);
 }
 
 HostZoomMap* GetHostZoomMapForResourceContext(ResourceContext* context) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   return static_cast<NonOwningZoomData*>(
       context->GetUserData(kHostZoomMapKeyName))->host_zoom_map();
 }
 
+ChromeURLDataManagerBackend* GetURLDataManagerForResourceContext(
+    ResourceContext* context) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  if (!context->GetUserData(kURLDataManagerKeyName)) {
+    context->SetUserData(kURLDataManagerKeyName,
+                         new ChromeURLDataManagerBackend());
+  }
+  return static_cast<ChromeURLDataManagerBackend*>(
+      context->GetUserData(kURLDataManagerKeyName));
+}
+
 void InitializeResourceContext(BrowserContext* browser_context) {
   ResourceContext* resource_context = browser_context->GetResourceContext();
   DCHECK(!resource_context->GetUserData(kHostZoomMapKeyName));
 
   resource_context->SetUserData(
       kBlobStorageContextKeyName,
       new UserDataAdapter<ChromeBlobStorageContext>(
           ChromeBlobStorageContext::GetFor(browser_context)));
 
   // This object is owned by the BrowserContext and not ResourceContext, so
   // store a non-owning pointer here.
   resource_context->SetUserData(
       kHostZoomMapKeyName,
       new NonOwningZoomData(
           HostZoomMap::GetForBrowserContext(browser_context)));
+
   resource_context->DetachUserDataThread();
 }
 
 }  // namespace content