Add comment to PPB_MouseInputEvent version 1.1 that GetMovement hasn't been supported.

ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc

Index: ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc
index 3a1e700fdb8d12e380a46c5dcbce3d5aaddb8af2..ac0f136fdaafd8e8ea8720e0ed36dc40be8439c0 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_input_event.cc
@@ -130,7 +130,7 @@ uint32_t GetModifiers(PP_Resource event) {
 
 // Mouse -----------------------------------------------------------------------
 
-PP_Resource CreateMouseInputEvent1_1(PP_Instance instance,
+PP_Resource CreateMouseInputEventDev(PP_Instance instance,
                                      PP_InputEvent_Type type,
                                      PP_TimeTicks time_stamp,
                                      uint32_t modifiers,
@@ -166,15 +166,15 @@ PP_Resource CreateMouseInputEvent1_1(PP_Instance instance,
   return kInvalidResourceId;
 }
 
-PP_Resource CreateMouseInputEvent1_0(PP_Instance instance,
-                                     PP_InputEvent_Type type,
-                                     PP_TimeTicks time_stamp,
-                                     uint32_t modifiers,
-                                     PP_InputEvent_MouseButton mouse_button,
-                                     const PP_Point* mouse_position,
-                                     int32_t click_count) {
+PP_Resource CreateMouseInputEvent(PP_Instance instance,
+                                  PP_InputEvent_Type type,
+                                  PP_TimeTicks time_stamp,
+                                  uint32_t modifiers,
+                                  PP_InputEvent_MouseButton mouse_button,
+                                  const PP_Point* mouse_position,
+                                  int32_t click_count) {
   PP_Point mouse_movement = PP_MakePoint(0, 0);
-  return CreateMouseInputEvent1_1(instance, type, time_stamp, modifiers,
+  return CreateMouseInputEventDev(instance, type, time_stamp, modifiers,
                                   mouse_button, mouse_position, click_count,
                                   &mouse_movement);
 
@@ -329,9 +329,9 @@ const PPB_InputEvent* PluginInputEvent::GetInterface() {
 }
 
 // static
-const PPB_MouseInputEvent_1_0* PluginInputEvent::GetMouseInterface1_0() {
-  static const PPB_MouseInputEvent_1_0 mouse_input_event_interface = {
-    CreateMouseInputEvent1_0,
+const PPB_MouseInputEvent* PluginInputEvent::GetMouseInterface() {
+  static const PPB_MouseInputEvent mouse_input_event_interface = {
+    CreateMouseInputEvent,
     IsMouseInputEvent,
     ::GetMouseButton,
     ::GetMousePosition,
@@ -341,9 +341,9 @@ const PPB_MouseInputEvent_1_0* PluginInputEvent::GetMouseInterface1_0() {
 }
 
 // static
-const PPB_MouseInputEvent* PluginInputEvent::GetMouseInterface1_1() {
-  static const PPB_MouseInputEvent mouse_input_event_interface = {
-    CreateMouseInputEvent1_1,
+const PPB_MouseInputEvent_Dev* PluginInputEvent::GetMouseDevInterface() {
+  static const PPB_MouseInputEvent_Dev mouse_input_event_interface = {
+    CreateMouseInputEventDev,
     IsMouseInputEvent,
     ::GetMouseButton,
     ::GetMousePosition,