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

cc/trees/layer_tree_host_unittest.cc

 // Copyright 2011 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/trees/layer_tree_host.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/synchronization/lock.h"
@@ skipping 1339 matching lines @@
   virtual void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 
   virtual void DidCommitAndDrawFrame() override {
     switch (layer_tree_host()->source_frame_number()) {
       case 1:
         parent_->SetNeedsDisplay();
         child_->SetNeedsDisplay();
         break;
       case 2:
         // Damage part of layers.
-        parent_->SetNeedsDisplayRect(gfx::RectF(0.f, 0.f, 5.f, 5.f));
-        child_->SetNeedsDisplayRect(gfx::RectF(0.f, 0.f, 5.f, 5.f));
+        parent_->SetNeedsDisplayRect(gfx::Rect(5, 5));
+        child_->SetNeedsDisplayRect(gfx::Rect(5, 5));
         break;
       case 3:
         child_->SetNeedsDisplay();
         layer_tree_host()->SetViewportSize(gfx::Size(10, 10));
         break;
       case 4:
         layer_tree_host()->SetViewportSize(gfx::Size(10, 20));
         break;
       case 5:
         EndTest();
@@ skipping 3788 matching lines @@
   }
 
   int commit_count_;
   TestSwapPromiseResult swap_promise_result_[3];
 };
 
 // Impl-side painting is not supported for synchronous compositing.
 SINGLE_THREAD_NOIMPL_TEST_F(LayerTreeHostTestSynchronousCompositeSwapPromise);
 
 }  // namespace cc