Change the DidChangeView update to take a new ViewChanged resource.

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 c424d7de826d8327e2f708f56183e67d21237b5e..2333615c410d93a1c57e175539b03085084dd355 100644
--- a/ppapi/proxy/ppapi_messages.h
+++ b/ppapi/proxy/ppapi_messages.h
@@ -27,8 +27,8 @@
 #include "ppapi/c/pp_point.h"
 #include "ppapi/c/pp_rect.h"
 #include "ppapi/c/pp_resource.h"
-#include "ppapi/c/pp_size.h"
 #include "ppapi/c/dev/pp_video_dev.h"
+#include "ppapi/c/pp_size.h"
 #include "ppapi/c/private/ppb_tcp_socket_private.h"
 #include "ppapi/proxy/ppapi_param_traits.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
@@ -37,6 +37,7 @@
 #include "ppapi/shared_impl/ppapi_preferences.h"
 #include "ppapi/shared_impl/ppb_input_event_shared.h"
 #include "ppapi/shared_impl/ppb_url_request_info_shared.h"
+#include "ppapi/shared_impl/ppb_view_shared.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT PPAPI_PROXY_EXPORT
@@ -92,6 +93,13 @@ IPC_STRUCT_TRAITS_BEGIN(ppapi::proxy::PPPVideoCapture_Buffer)
   IPC_STRUCT_TRAITS_MEMBER(size)
 IPC_STRUCT_TRAITS_END()
 
+IPC_STRUCT_TRAITS_BEGIN(ppapi::ViewData)
+  IPC_STRUCT_TRAITS_MEMBER(rect)
+  IPC_STRUCT_TRAITS_MEMBER(is_fullscreen)
+  IPC_STRUCT_TRAITS_MEMBER(is_page_visible)
+  IPC_STRUCT_TRAITS_MEMBER(clip_rect)
+IPC_STRUCT_TRAITS_END()
+
 IPC_STRUCT_TRAITS_BEGIN(ppapi::Preferences)
   IPC_STRUCT_TRAITS_MEMBER(standard_font_family)
   IPC_STRUCT_TRAITS_MEMBER(fixed_font_family)
@@ -402,11 +410,9 @@ IPC_SYNC_MESSAGE_ROUTED3_1(PpapiMsg_PPPInstance_DidCreate,
                            PP_Bool /* result */)
 IPC_SYNC_MESSAGE_ROUTED1_0(PpapiMsg_PPPInstance_DidDestroy,
                            PP_Instance /* instance */)
-IPC_MESSAGE_ROUTED5(PpapiMsg_PPPInstance_DidChangeView,
+IPC_MESSAGE_ROUTED3(PpapiMsg_PPPInstance_DidChangeView,
                     PP_Instance /* instance */,
-                    PP_Rect /* position */,
-                    PP_Rect /* clip */,
-                    PP_Bool /* fullscreen */,
+                    ppapi::ViewData /* new_data */,
                     PP_Bool /* flash_fullscreen */)
 IPC_MESSAGE_ROUTED2(PpapiMsg_PPPInstance_DidChangeFocus,
                     PP_Instance /* instance */,