Add tilt_x and tilt_y to ppapi touchpoint.

ppapi/shared_impl/ppb_input_event_shared.cc

Index: ppapi/shared_impl/ppb_input_event_shared.cc
diff --git a/ppapi/shared_impl/ppb_input_event_shared.cc b/ppapi/shared_impl/ppb_input_event_shared.cc
index c966224b39dd177dec6e08158e20edf2fc95eab2..812e03cfb159523dd49cb1763c5bf496ae91814f 100644
--- a/ppapi/shared_impl/ppb_input_event_shared.cc
+++ b/ppapi/shared_impl/ppb_input_event_shared.cc
@@ -121,15 +121,16 @@ void PPB_InputEvent_Shared::GetIMESelection(uint32_t* start, uint32_t* end) {
 
 void PPB_InputEvent_Shared::AddTouchPoint(PP_TouchListType list,
                                           const PP_TouchPoint& point) {
+  TouchPointWithTilt point_with_tilt{point, {0, 0}};
   switch (list) {
     case PP_TOUCHLIST_TYPE_TOUCHES:
-      data_.touches.push_back(point);
+      data_.touches.push_back(point_with_tilt);
       break;
     case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
-      data_.changed_touches.push_back(point);
+      data_.changed_touches.push_back(point_with_tilt);
       break;
     case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
-      data_.target_touches.push_back(point);
+      data_.target_touches.push_back(point_with_tilt);
       break;
     default:
       break;
@@ -151,7 +152,7 @@ uint32_t PPB_InputEvent_Shared::GetTouchCount(PP_TouchListType list) {
 
 PP_TouchPoint PPB_InputEvent_Shared::GetTouchByIndex(PP_TouchListType list,
                                                      uint32_t index) {
-  std::vector<PP_TouchPoint>* points;
+  std::vector<TouchPointWithTilt>* points;
   switch (list) {
     case PP_TOUCHLIST_TYPE_TOUCHES:
       points = &data_.touches;
@@ -168,12 +169,12 @@ PP_TouchPoint PPB_InputEvent_Shared::GetTouchByIndex(PP_TouchListType list,
   if (index >= points->size()) {
     return PP_MakeTouchPoint();
   }
-  return points->at(index);
+  return points->at(index).touch;
 }
 
 PP_TouchPoint PPB_InputEvent_Shared::GetTouchById(PP_TouchListType list,
                                                   uint32_t id) {
-  const std::vector<PP_TouchPoint>* points;
+  const std::vector<TouchPointWithTilt>* points;
   switch (list) {
     case PP_TOUCHLIST_TYPE_TOUCHES:
       points = &data_.touches;
@@ -188,12 +189,57 @@ PP_TouchPoint PPB_InputEvent_Shared::GetTouchById(PP_TouchListType list,
       return PP_MakeTouchPoint();
   }
   for (size_t i = 0; i < points->size(); i++) {
-    if (points->at(i).id == id)
-      return points->at(i);
+    if (points->at(i).touch.id == id)
+      return points->at(i).touch;
   }
   return PP_MakeTouchPoint();
 }
 
+PP_FloatPoint PPB_InputEvent_Shared::GetTouchTiltByIndex(PP_TouchListType list,
+                                                         uint32_t index) {
+  std::vector<TouchPointWithTilt>* points;
+  switch (list) {
+    case PP_TOUCHLIST_TYPE_TOUCHES:
+      points = &data_.touches;
+      break;
+    case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
+      points = &data_.changed_touches;
+      break;
+    case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
+      points = &data_.target_touches;
+      break;
+    default:
+      return PP_MakeFloatPoint(0, 0);
+  }
+  if (index >= points->size()) {
+    return PP_MakeFloatPoint(0, 0);
+  }
+  return points->at(index).tilt;
+}
+
+PP_FloatPoint PPB_InputEvent_Shared::GetTouchTiltById(PP_TouchListType list,
+                                                      uint32_t id) {
+  const std::vector<TouchPointWithTilt>* points;
+  switch (list) {
+    case PP_TOUCHLIST_TYPE_TOUCHES:
+      points = &data_.touches;
+      break;
+    case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
+      points = &data_.changed_touches;
+      break;
+    case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
+      points = &data_.target_touches;
+      break;
+    default:
+      return PP_MakeFloatPoint(0, 0);
+  }
+  for (size_t i = 0; i < points->size(); i++) {
+    if (points->at(i).touch.id == id)
+      return points->at(i).tilt;
+  }
+  return PP_MakeFloatPoint(0, 0);
+}
+
 // static
 PP_Resource PPB_InputEvent_Shared::CreateIMEInputEvent(
     ResourceObjectType type,