Add new MouseCursor interface for setting the mouse cursor.

ppapi/proxy/ppapi_messages.h

Index: ppapi/proxy/ppapi_messages.h
diff --git a/ppapi/proxy/ppapi_messages.h b/ppapi/proxy/ppapi_messages.h
index 1043f5990478ae7f9018002573bca9d22b440929..1fcbdccdef8e2a98c741348b88268952a7370acd 100644
--- a/ppapi/proxy/ppapi_messages.h
+++ b/ppapi/proxy/ppapi_messages.h
@@ -674,26 +674,6 @@ IPC_MESSAGE_ROUTED1(PpapiHostMsg_PPBCore_AddRefResource,
 IPC_MESSAGE_ROUTED1(PpapiHostMsg_PPBCore_ReleaseResource,
                     ppapi::HostResource)
 
-// PPB_CursorControl.
-IPC_SYNC_MESSAGE_ROUTED4_1(PpapiHostMsg_PPBCursorControl_SetCursor,

[dmichael (off chromium), 2012/03/26 17:43:17]

yeesh... more sync messages down, yay!

But it does beg the question...  is there any use case where an App needs to
know definitively that the cursor is now set? I think we can go with this and
see if anybody ever complains. It's probably perfectly fine in practice, but we
could add a completion callback later if we wanted.

-                           PP_Instance /* instance */,
-                           int32_t /* type */,
-                           ppapi::HostResource /* custom_image */,
-                           PP_Point /* hot_spot */,
-                           PP_Bool /* result */)
-IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBCursorControl_LockCursor,
-                           PP_Instance /* instance */,
-                           PP_Bool /* result */)
-IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBCursorControl_UnlockCursor,
-                           PP_Instance /* instance */,
-                           PP_Bool /* result */)
-IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBCursorControl_HasCursorLock,
-                           PP_Instance /* instance */,
-                           PP_Bool /* result */)
-IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBCursorControl_CanLockCursor,
-                           PP_Instance /* instance */,
-                           PP_Bool /* result */)
-
 // PPB_FileChooser.
 IPC_SYNC_MESSAGE_ROUTED3_1(PpapiHostMsg_PPBFileChooser_Create,
                            PP_Instance /* instance */,
@@ -943,6 +923,11 @@ IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBInstance_GetDocumentURL,
 IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBInstance_GetPluginInstanceURL,
                            PP_Instance /* active */,
                            ppapi::proxy::SerializedVar /* result */)
+IPC_MESSAGE_ROUTED4(PpapiHostMsg_PPBInstance_SetCursor,
+                    PP_Instance /* instance */,
+                    int32_t /* type */,
+                    ppapi::HostResource /* custom_image */,
+                    PP_Point /* hot_spot */)
 
 IPC_SYNC_MESSAGE_ROUTED3_1(
     PpapiHostMsg_PPBPDF_GetFontFileWithFallback,