On Windows, create a new TransportDIB::Handle struct which includes the file

mapping HANDLE and the source process ID. Duplicating the handle for the
remote process is done in TransportDIB::Map, instead of in various #ifdefs
scattered across the code. Also on windows, remove the struct for the
TransportDIB::Id which contained both the sequence number and the HANDLE
and replace it with just the sequence number.

Fix ThumbnailGenerator by mapping the TransportDIB on Windows and adding
a method to duplicate the file mapping handle before sending across the
channel.
BUG=none
TEST=none
Review URL: http://codereview.chromium.org/3305020

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@61608 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 3 insertions, 2 deletions

diff --git a/chrome/browser/renderer_host/video_layer.h b/chrome/browser/renderer_host/video_layer.h
index 0d7d4f8..4bcc245 100644
--- a/chrome/browser/renderer_host/video_layer.h
+++ b/chrome/browser/renderer_host/video_layer.h
@@ -26,12 +26,13 @@ class VideoLayer {
   RenderWidgetHost* render_widget_host() const { return render_widget_host_; }
   const gfx::Size& size() { return size_; }
 
-  // Copy the incoming bitmap into this video layer. |bitmap| contains YUV
+  // Copy the incoming bitmap into this video layer. The given DIB contains YUV
   // pixel data in YV12 format and must be the same dimensions as this video
   // layer. |bitmap_rect| specifies the absolute position and destination size
   // of the bitmap on the backing store.
   virtual void CopyTransportDIB(RenderProcessHost* process,
-                                TransportDIB::Id bitmap,
+                                TransportDIB::Id dib_id,
+                                TransportDIB::Handle dib_handle,
                                 const gfx::Rect& bitmap_rect) = 0;
 
  protected: