Change the DidChangeView update to take a new ViewChanged resource.

ppapi/thunk/ppb_instance_api.h

Index: ppapi/thunk/ppb_instance_api.h
diff --git a/ppapi/thunk/ppb_instance_api.h b/ppapi/thunk/ppb_instance_api.h
index 21187c44ef3b0f02de6b2d738a8e1d3d45d6be5a..815147924e5d0fdd1025b716610edce7c144bd21 100644
--- a/ppapi/thunk/ppb_instance_api.h
+++ b/ppapi/thunk/ppb_instance_api.h
@@ -19,6 +19,9 @@
 #endif
 
 namespace ppapi {
+
+struct ViewData;
+
 namespace thunk {
 
 class PPB_Instance_FunctionAPI {
@@ -28,6 +31,9 @@ class PPB_Instance_FunctionAPI {
   virtual PP_Bool BindGraphics(PP_Instance instance, PP_Resource device) = 0;
   virtual PP_Bool IsFullFrame(PP_Instance instance) = 0;
 
+  // Not an exposed PPAPI function, this returns the internal view data struct.
+  virtual const ViewData* GetViewData(PP_Instance instance) = 0;
+
   // InstancePrivate.
   virtual PP_Var GetWindowObject(PP_Instance instance) = 0;
   virtual PP_Var GetOwnerElementObject(PP_Instance instance) = 0;
@@ -55,7 +61,6 @@ class PPB_Instance_FunctionAPI {
                                          int32_t index) = 0;
 
   // Fullscreen.
-  virtual PP_Bool IsFullscreen(PP_Instance instance) = 0;
   virtual PP_Bool SetFullscreen(PP_Instance instance,
                                 PP_Bool fullscreen) = 0;
   virtual PP_Bool GetScreenSize(PP_Instance instance, PP_Size* size) = 0;