Migrate ui::Transform to gfx::Transform

ui/base/events/event.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/base/events/event.h"
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
 #endif
 
@@ skipping 125 matching lines @@
                            const gfx::Point& location,
                            const gfx::Point& root_location,
                            int flags)
     : Event(type, flags),
       location_(location),
       root_location_(root_location),
       valid_system_location_(false),
       system_location_(0, 0) {
 }
 
-void LocatedEvent::UpdateForRootTransform(const Transform& root_transform) {
+void LocatedEvent::UpdateForRootTransform(
+    const gfx::Transform& root_transform) {
   // Transform has to be done at root level.
   DCHECK_EQ(root_location_.x(), location_.x());
   DCHECK_EQ(root_location_.y(), location_.y());
   gfx::Point3f p(location_);
   root_transform.TransformPointReverse(p);
   root_location_ = location_ = p.AsPoint();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // MouseEvent
@@ skipping 150 matching lines @@
 }
 
 TouchEvent::~TouchEvent() {
 }
 
 void TouchEvent::CalibrateLocation(const gfx::Size& from, const gfx::Size& to) {
   location_ = CalibratePoint(location_, from, to);
   root_location_ = CalibratePoint(root_location_, from, to);
 }
 
-void TouchEvent::UpdateForRootTransform(const Transform& root_transform) {
+void TouchEvent::UpdateForRootTransform(const gfx::Transform& root_transform) {
   LocatedEvent::UpdateForRootTransform(root_transform);
   gfx::Point3f scale;
   InterpolatedTransform::FactorTRS(root_transform, NULL, NULL, &scale);
   if (scale.x())
     radius_x_ /= scale.x();
   if (scale.y())
     radius_y_ /= scale.y();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ skipping 187 matching lines @@
 int GestureEvent::GetLowestTouchId() const {
   if (touch_ids_bitfield_ == 0)
     return -1;
   int i = -1;
   // Find the index of the least significant 1 bit
   while (!(1 << ++i & touch_ids_bitfield_));
   return i;
 }
 
 }  // namespace ui