cc: Stop converting update rect from int to float to int.

cc/layers/layer_impl.cc

 // Copyright 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 "cc/layers/layer_impl.h"
 
 #include "base/debug/trace_event.h"
 #include "base/debug/trace_event_argument.h"
 #include "base/json/json_reader.h"
 #include "base/strings/stringprintf.h"
@@ skipping 581 matching lines @@
   // update_rect here. The LayerImpl's update_rect needs to accumulate (i.e.
   // union) any update changes that have occurred on the main thread.
   update_rect_.Union(layer->update_rect());
   layer->SetUpdateRect(update_rect_);
 
   layer->SetStackingOrderChanged(stacking_order_changed_);
   layer->SetDebugInfo(debug_info_);
 
   // Reset any state that should be cleared for the next update.
   stacking_order_changed_ = false;
-  update_rect_ = gfx::RectF();
+  update_rect_ = gfx::Rect();
   needs_push_properties_ = false;
   num_dependents_need_push_properties_ = 0;
 }
 
 gfx::Vector2dF LayerImpl::FixedContainerSizeDelta() const {
   if (!scroll_clip_layer_)
     return gfx::Vector2dF();
 
   float scale_delta = layer_tree_impl()->page_scale_delta();
   float scale = layer_tree_impl()->page_scale_factor();
@@ skipping 96 matching lines @@
   SetNeedsPushProperties();
 }
 
 const char* LayerImpl::LayerTypeAsString() const {
   return "cc::LayerImpl";
 }
 
 void LayerImpl::ResetAllChangeTrackingForSubtree() {
   layer_property_changed_ = false;
 
-  update_rect_ = gfx::RectF();
+  update_rect_ = gfx::Rect();
   damage_rect_ = gfx::RectF();
 
   if (draw_properties_.render_surface)
     draw_properties_.render_surface->ResetPropertyChangedFlag();
 
   if (mask_layer_)
     mask_layer_->ResetAllChangeTrackingForSubtree();
 
   if (replica_layer_) {
     // This also resets the replica mask, if it exists.
@@ skipping 295 matching lines @@
 bool LayerImpl::TransformIsAnimating() const {
   return layer_animation_controller_->IsAnimatingProperty(Animation::Transform);
 }
 
 bool LayerImpl::TransformIsAnimatingOnImplOnly() const {
   Animation* transform_animation =
       layer_animation_controller_->GetAnimation(Animation::Transform);
   return transform_animation && transform_animation->is_impl_only();
 }
 
-void LayerImpl::SetUpdateRect(const gfx::RectF& update_rect) {
+void LayerImpl::SetUpdateRect(const gfx::Rect& update_rect) {
   update_rect_ = update_rect;
   SetNeedsPushProperties();
 }
 
 void LayerImpl::AddDamageRect(const gfx::RectF& damage_rect) {
   damage_rect_ = gfx::UnionRects(damage_rect_, damage_rect);
 }
 
 void LayerImpl::SetContentBounds(const gfx::Size& content_bounds) {
   if (this->content_bounds() == content_bounds)
@@ skipping 514 matching lines @@
 }
 
 void LayerImpl::NotifyAnimationFinished(
     base::TimeTicks monotonic_time,
     Animation::TargetProperty target_property) {
   if (target_property == Animation::ScrollOffset)
     layer_tree_impl_->InputScrollAnimationFinished();
 }
 
 }  // namespace cc