Use TaskScheduler instead of blocking pool in chrome_url_request_util.cc.

chrome/browser/extensions/chrome_url_request_util.cc

 // Copyright 2014 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 "chrome/browser/extensions/chrome_url_request_util.h"
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/memory/weak_ptr.h"
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
-#include "base/task_runner_util.h"
+#include "base/task_scheduler/post_task.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/chrome_manifest_url_handlers.h"
-#include "content/public/browser/browser_thread.h"
 #include "content/public/browser/resource_request_info.h"
 #include "extensions/browser/component_extension_resource_manager.h"
 #include "extensions/browser/extension_protocols.h"
 #include "extensions/browser/extensions_browser_client.h"
 #include "extensions/browser/info_map.h"
 #include "extensions/browser/url_request_util.h"
 #include "extensions/common/file_util.h"
 #include "net/base/mime_util.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_request_headers.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_response_info.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_simple_job.h"
 #include "ui/base/resource/resource_bundle.h"
 
-using content::BrowserThread;
 using extensions::ExtensionsBrowserClient;
 
 namespace {
 
 // A request for an extension resource in a Chrome .pak file. These are used
 // by component extensions.
 class URLRequestResourceBundleJob : public net::URLRequestSimpleJob {
  public:
   URLRequestResourceBundleJob(net::URLRequest* request,
                               net::NetworkDelegate* network_delegate,
@@ skipping 18 matching lines @@
       const net::CompletionCallback& callback) const override {
     const ResourceBundle& rb = ResourceBundle::GetSharedInstance();
     *data = rb.LoadDataResourceBytes(resource_id_);
 
     // Add the Content-Length header now that we know the resource length.
     response_info_.headers->AddHeader(
         base::StringPrintf("%s: %s", net::HttpRequestHeaders::kContentLength,
                            base::SizeTToString((*data)->size()).c_str()));
 
     std::string* read_mime_type = new std::string;
-    bool posted = base::PostTaskAndReplyWithResult(
-        BrowserThread::GetBlockingPool(), FROM_HERE,
+    base::PostTaskWithTraitsAndReplyWithResult(
+        FROM_HERE, base::TaskTraits().MayBlock(),
         base::Bind(&net::GetMimeTypeFromFile, filename_,
                    base::Unretained(read_mime_type)),
         base::Bind(&URLRequestResourceBundleJob::OnMimeTypeRead,
                    weak_factory_.GetWeakPtr(), mime_type, charset, *data,
                    base::Owned(read_mime_type), callback));
-    DCHECK(posted);
 
     return net::ERR_IO_PENDING;
   }
 
   void GetResponseInfo(net::HttpResponseInfo* info) override {
     *info = response_info_;
   }
 
  private:
   ~URLRequestResourceBundleJob() override {}
@@ skipping 87 matching lines @@
                                              resource_id,
                                              content_security_policy,
                                              send_cors_header);
     }
   }
   return NULL;
 }
 
 }  // namespace chrome_url_request_util
 }  // namespace extensions