Remove ui::TouchEvent -> blink::WebTouchEvent conversion methods.

ui/events/gestures/motion_event_aura.cc

 // Copyright 2014 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/gestures/motion_event_aura.h"
 
 #include "base/logging.h"
 #include "ui/events/gestures/gesture_configuration.h"
 
 namespace ui {
@@ skipping 64 matching lines @@
 
 int MotionEventAura::GetId() const {
   return GetPointerId(0);
 }
 
 MotionEvent::Action MotionEventAura::GetAction() const {
   return cached_action_;
 }
 
 int MotionEventAura::GetActionIndex() const {
-  DCHECK(cached_action_ == ACTION_POINTER_DOWN ||
-         cached_action_ == ACTION_POINTER_UP);
+  if (cached_action_ != ACTION_POINTER_DOWN &&
+      cached_action_ != ACTION_POINTER_UP) {
+    return -1;
+  }
   DCHECK_GE(cached_action_index_, 0);
   DCHECK_LT(cached_action_index_, static_cast<int>(pointer_count_));
   return cached_action_index_;
 }
 
 size_t MotionEventAura::GetPointerCount() const { return pointer_count_; }
 
 int MotionEventAura::GetPointerId(size_t pointer_index) const {
   DCHECK_LT(pointer_index, pointer_count_);
   return active_touches_[pointer_index].touch_id;
@@ skipping 134 matching lines @@
 size_t MotionEventAura::GetIndexFromId(int id) const {
   for (size_t i = 0; i < pointer_count_; ++i) {
     if (active_touches_[i].touch_id == id)
       return i;
   }
   NOTREACHED();
   return 0;
 }
 
 }  // namespace ui