Move SwapOut methods to RenderFrameHost.

content/common/view_messages.h

Index: content/common/view_messages.h
diff --git a/content/common/view_messages.h b/content/common/view_messages.h
index 24a0c51075522944d25f6fef83b4562ef6293875..91960ebbc8ca4e63df8b70a695510ab7e57aadb3 100644
--- a/content/common/view_messages.h
+++ b/content/common/view_messages.h
@@ -863,11 +863,6 @@ IPC_MESSAGE_ROUTED0(ViewMsg_CantFocus)
 // PageGroupLoadDeferrer is on the stack for SwapOut.
 IPC_MESSAGE_ROUTED0(ViewMsg_SuppressDialogsUntilSwapOut)
 
-// Instructs the renderer to swap out for a cross-site transition, including
-// running the unload event handler. Expects a SwapOut_ACK message when
-// finished.
-IPC_MESSAGE_ROUTED0(ViewMsg_SwapOut)
-
 // Instructs the renderer to close the current page, including running the
 // onunload event handler.
 //
@@ -1223,10 +1218,6 @@ IPC_MESSAGE_ROUTED5(ViewHostMsg_Find_Reply,
                     int /* active_match_ordinal */,
                     bool /* final_update */)
 
-// Indicates that the current renderer has swapped out, after a SwapOut
-// message.
-IPC_MESSAGE_ROUTED0(ViewHostMsg_SwapOut_ACK)
-
 // Indicates that the current page has been closed, after a ClosePage
 // message.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_ClosePage_ACK)