Reland "Propagate information about how ARC apps are launched"

ui/events/event_utils.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/event_utils.h"
 
 #include <vector>
 
 #include "base/metrics/histogram_macros.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 
 namespace ui {
 
 namespace {
 int g_custom_event_types = ET_LAST;
 }  // namespace
 
 std::unique_ptr<Event> EventFromNative(const base::NativeEvent& native_event) {
   std::unique_ptr<Event> event;
   EventType type = EventTypeFromNative(native_event);
-  switch(type) {
+  switch (type) {
     case ET_KEY_PRESSED:
     case ET_KEY_RELEASED:
       event.reset(new KeyEvent(native_event));
       break;
 
     case ET_MOUSE_PRESSED:
     case ET_MOUSE_DRAGGED:
     case ET_MOUSE_RELEASED:
     case ET_MOUSE_MOVED:
     case ET_MOUSE_ENTERED:
@@ skipping 90 matching lines @@
       return;
     case ET_TOUCH_RELEASED:
       UMA_HISTOGRAM_CUSTOM_COUNTS("Event.Latency.OS.TOUCH_RELEASED",
                                   delta.InMicroseconds(), 1, 1000000, 50);
       return;
     default:
       return;
   }
 }
 
+bool IsMouseEventFromFlags(int event_flags) {
+  return (event_flags & (EF_LEFT_MOUSE_BUTTON | EF_MIDDLE_MOUSE_BUTTON |
+                         EF_RIGHT_MOUSE_BUTTON | EF_BACK_MOUSE_BUTTON |
+                         EF_FORWARD_MOUSE_BUTTON)) != 0;
+}
+
+bool IsTouchEventFromFlags(int event_flags) {
+  return (event_flags & EF_FROM_TOUCH) != 0;
+}
+
 }  // namespace ui