Remove getters for HTML5 related objects from the ResourceContext interface. Half of them weren't u…

content/browser/chrome_blob_storage_context.cc

 // Copyright (c) 2011 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/chrome_blob_storage_context.h"
 
+#include "base/bind.h"
+#include "content/public/browser/browser_context.h"
 #include "webkit/blob/blob_storage_controller.h"
 
+using base::UserDataAdapter;
+using content::BrowserContext;
 using content::BrowserThread;
 using webkit_blob::BlobStorageController;
 
+static const char* kBlobStorageContextKeyName = "content_blob_storage_context";
+
+ChromeBlobStorageContext* ChromeBlobStorageContext::GetFor(
+    BrowserContext* context) {
+  if (!context->GetUserData(kBlobStorageContextKeyName)) {
+    scoped_refptr<ChromeBlobStorageContext> blob =
+        new ChromeBlobStorageContext();
+    BrowserThread::PostTask(
+        BrowserThread::IO, FROM_HERE,
+        base::Bind(&ChromeBlobStorageContext::InitializeOnIOThread, blob));
+    context->SetUserData(kBlobStorageContextKeyName,
+                         new UserDataAdapter<ChromeBlobStorageContext>(blob));
+  }
+
+  return UserDataAdapter<ChromeBlobStorageContext>::Get(
+      context, kBlobStorageContextKeyName);
+}
+
 ChromeBlobStorageContext::ChromeBlobStorageContext() {
 }
 
 void ChromeBlobStorageContext::InitializeOnIOThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   controller_.reset(new BlobStorageController());
 }
 
 ChromeBlobStorageContext::~ChromeBlobStorageContext() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 }