Move creation and ownership of DownloadManager from the embedder to content. This matches all the o…

content/browser/web_contents/web_contents_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/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 104 matching lines @@
 // - Once the onunload handler is finished, a SwapOut_ACK message is sent to
 //   the ResourceDispatcherHost, who unpauses the response.  Data is then sent
 //   to the pending RVH.
 // - The pending renderer sends a FrameNavigate message that invokes the
 //   DidNavigate method.  This replaces the current RVH with the
 //   pending RVH.
 // - The previous renderer is kept swapped out in RenderViewHostManager in case
 //   the user goes back.  The process only stays live if another tab is using
 //   it, but if so, the existing frame relationships will be maintained.
 
+using content::BrowserContext;
 using content::DevToolsAgentHost;
 using content::DevToolsAgentHostRegistry;
 using content::DevToolsManagerImpl;
 using content::DownloadItem;
 using content::DownloadManager;
 using content::DownloadUrlParameters;
 using content::GlobalRequestID;
 using content::HostZoomMap;
 using content::InterstitialPage;
 using content::LoadNotificationDetails;
@@ skipping 2901 matching lines @@
 }
 
 void WebContentsImpl::SetEncoding(const std::string& encoding) {
   encoding_ = content::GetContentClient()->browser()->
       GetCanonicalEncodingNameByAliasName(encoding);
 }
 
 void WebContentsImpl::SaveURL(const GURL& url,
                               const content::Referrer& referrer,
                               bool is_main_frame) {
-  DownloadManager* dlm = GetBrowserContext()->GetDownloadManager();
+  DownloadManager* dlm =
+      BrowserContext::GetDownloadManager(GetBrowserContext());
   if (!dlm)
     return;
   int64 post_id = -1;
   if (is_main_frame) {
     const NavigationEntry* entry = controller_.GetActiveEntry();
     if (entry)
       post_id = entry->GetPostID();
   }
   content::DownloadSaveInfo save_info;
   save_info.prompt_for_save_location = true;
@@ skipping 26 matching lines @@
       browser_plugin_host()->embedder_render_process_host();
   *embedder_container_id = browser_plugin_host()->instance_id();
   int embedder_process_id =
       embedder_render_process_host ? embedder_render_process_host->GetID() : -1;
   if (embedder_process_id != -1) {
     *embedder_channel_name =
         StringPrintf("%d.r%d", render_view_host->GetProcess()->GetID(),
                      embedder_process_id);
   }
 }