move favicon download code from chrome/ into content/

chrome/browser/favicon/favicon_download_helper.cc

Index: chrome/browser/favicon/favicon_download_helper.cc
diff --git a/chrome/browser/favicon/favicon_download_helper.cc b/chrome/browser/favicon/favicon_download_helper.cc
index ce3959fcc417ca4941fc0f1aaaf831269253147c..82d54edd79afee01e438a46c3e7bb83942f7aa7d 100644
--- a/chrome/browser/favicon/favicon_download_helper.cc
+++ b/chrome/browser/favicon/favicon_download_helper.cc
@@ -5,14 +5,18 @@
 #include "chrome/browser/favicon/favicon_download_helper.h"
 
 #include "chrome/browser/favicon/favicon_download_helper_delegate.h"
-#include "chrome/browser/favicon/favicon_util.h"
 #include "chrome/common/icon_messages.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 
+using content::FaviconURL;
 using content::WebContents;
 
+namespace {
+  static int current_download_id = 0;
+} // namespace.
+
 FaviconDownloadHelper::FaviconDownloadHelper(
     WebContents* web_contents,
     FaviconDownloadHelperDelegate* delegate)
@@ -26,7 +30,9 @@ FaviconDownloadHelper::~FaviconDownloadHelper() {
 
 int FaviconDownloadHelper::DownloadFavicon(const GURL& url, int image_size) {
   content::RenderViewHost* host = web_contents()->GetRenderViewHost();
-  int id = FaviconUtil::DownloadFavicon(host, url, image_size);
+  int id = ++current_download_id;
+  host->Send(new IconMsg_DownloadFavicon(host->GetRoutingID(), id, url,

[jam, 2012/11/27 01:16:31]

is this file wrong? i.e. icon_messages.h is now in content

[Cait (Slow), 2012/11/28 00:11:45]

Done.

+                                         image_size));
   DownloadIdList::iterator i =
       std::find(download_ids_.begin(), download_ids_.end(), id);
   DCHECK(i == download_ids_.end());