Revert of "Converted LayerImpl::bounds() to return SizeF."

cc/trees/occlusion_tracker_unittest.cc

Index: cc/trees/occlusion_tracker_unittest.cc
diff --git a/cc/trees/occlusion_tracker_unittest.cc b/cc/trees/occlusion_tracker_unittest.cc
index 007226df00d16031f9da825703dd8eeeb81e2db4..6ab339723adb9a177d585f93f9f623d40f771c36 100644
--- a/cc/trees/occlusion_tracker_unittest.cc
+++ b/cc/trees/occlusion_tracker_unittest.cc
@@ -22,7 +22,6 @@
 #include "cc/trees/single_thread_proxy.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "ui/gfx/geometry/size_conversions.h"
 #include "ui/gfx/transform.h"
 
 namespace cc {
@@ -310,9 +309,7 @@ template <typename Types> class OcclusionTrackerTest : public testing::Test {
 
     Types::RecursiveUpdateNumChildren(root);
     LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
-        root,
-        gfx::ToCeiledSize(root->bounds()),
-        &render_surface_layer_list_impl_);
+        root, root->bounds(), &render_surface_layer_list_impl_);
     inputs.can_adjust_raster_scales = true;
     LayerTreeHostCommon::CalculateDrawProperties(&inputs);
 
@@ -326,9 +323,7 @@ template <typename Types> class OcclusionTrackerTest : public testing::Test {
 
     render_surface_layer_list_.reset(new RenderSurfaceLayerList);
     LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
-        root,
-        gfx::ToCeiledSize(root->bounds()),
-        render_surface_layer_list_.get());
+        root, root->bounds(), render_surface_layer_list_.get());
     inputs.can_adjust_raster_scales = true;
     LayerTreeHostCommon::CalculateDrawProperties(&inputs);
 
@@ -418,7 +413,7 @@ template <typename Types> class OcclusionTrackerTest : public testing::Test {
                      const gfx::Size& bounds) {
     SetBaseProperties(layer, transform, position, bounds);
 
-    layer->SetContentBounds(gfx::ToCeiledSize(layer->bounds()));
+    layer->SetContentBounds(layer->bounds());
   }
 
   void SetReplica(Layer* owning_layer, scoped_refptr<Layer> layer) {