Change DownloadProcessHandle to be more of an encapsulated class.

chrome/browser/download/download_manager.cc

Index: chrome/browser/download/download_manager.cc
diff --git a/chrome/browser/download/download_manager.cc b/chrome/browser/download/download_manager.cc
index 58090f2d492e18f00c5dc16dca08589f9e43e6e1..46c6073cdd4b20e4afaacfa7fc636d3021000fd2 100644
--- a/chrome/browser/download/download_manager.cc
+++ b/chrome/browser/download/download_manager.cc
@@ -755,9 +755,7 @@ void DownloadManager::DownloadCancelled(int32 download_id) {
 void DownloadManager::DownloadCancelledInternal(
     int download_id, DownloadProcessHandle process_handle) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  // Cancel the network request.  RDH is guaranteed to outlive the IO thread.

[hendrickson_a, 2011/06/04 16:01:45]

I'd like this comment to be preserved (in download_process_handle.cc?).

[Randy Smith (Not in Mondays), 2011/06/07 22:41:11]

Done.

-  download_util::CancelDownloadRequest(
-      g_browser_process->resource_dispatcher_host(), process_handle);
+  process_handle.CancelRequest();
 
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
@@ -801,38 +799,11 @@ void DownloadManager::OnDownloadError(int32 download_id,
           file_manager_, &DownloadFileManager::CancelDownload, download_id));
 }
 
-void DownloadManager::PauseDownload(int32 download_id, bool pause) {
-  DownloadMap::iterator it = in_progress_.find(download_id);
-  if (it == in_progress_.end())
-    return;
-
-  DownloadItem* download = it->second;
-  if (pause == download->is_paused())
-    return;
-
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      NewRunnableMethod(this,
-                        &DownloadManager::PauseDownloadRequest,
-                        g_browser_process->resource_dispatcher_host(),
-                        download->process_handle(),
-                        pause));
-}
-
 void DownloadManager::UpdateAppIcon() {
   if (status_updater_)
     status_updater_->Update();
 }
 
-void DownloadManager::PauseDownloadRequest(ResourceDispatcherHost* rdh,
-                                           DownloadProcessHandle process_handle,
-                                           bool pause) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  rdh->PauseRequest(process_handle.child_id(),
-                    process_handle.request_id(),
-                    pause);
-}
-
 void DownloadManager::RemoveDownload(int64 download_handle) {
   DownloadMap::iterator it = history_downloads_.find(download_handle);
   if (it == history_downloads_.end())