Update resource requests to remove redundant frame ID.

content/common/resource_messages.h

Index: content/common/resource_messages.h
diff --git a/content/common/resource_messages.h b/content/common/resource_messages.h
index 063bfd63231ac91514ab4180381e4d58abbb94d3..00ba724d19297fbaab3fd16e1a1553eb18b1ae80 100644
--- a/content/common/resource_messages.h
+++ b/content/common/resource_messages.h
@@ -185,16 +185,12 @@ IPC_STRUCT_BEGIN(ResourceHostMsg_Request)
   // True if |frame_id| is the main frame of a RenderView.
   IPC_STRUCT_MEMBER(bool, is_main_frame)
 
-  // Identifies the frame within the RenderView that sent the request.
-  // -1 if unknown / invalid.
-  IPC_STRUCT_MEMBER(int64, frame_id)
-
-  // True if |parent_frame_id| is the main frame of a RenderView.
+  // True if |parent_render_frame_id| is the main frame of a RenderView.
   IPC_STRUCT_MEMBER(bool, parent_is_main_frame)
 
   // Identifies the parent frame of the frame that sent the request.
   // -1 if unknown / invalid.
-  IPC_STRUCT_MEMBER(int64, parent_frame_id)
+  IPC_STRUCT_MEMBER(int, parent_render_frame_id)
 
   IPC_STRUCT_MEMBER(content::PageTransition, transition_type)