gfx: Make conversions from gfx::Point to PointF explicit.

cc/trees/layer_tree_host_unittest_delegated.cc

 // Copyright 2013 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/bind.h"
 #include "base/location.h"
@@ skipping 594 matching lines @@
         // no damage. The entire layer should be damaged, but nothing more.
         SetFrameData(
             CreateFrameData(gfx::Rect(0, 0, 10, 10), gfx::Rect(0, 0, 10, 10)));
         SetFrameData(
             CreateFrameData(gfx::Rect(0, 0, 10, 10), gfx::Rect(0, 0, 0, 0)));
         break;
       case 17:
         // Make another layer that uses the same frame provider. The new layer
         // should be damaged.
         delegated_copy_ = CreateDelegatedLayer(frame_provider_.get());
-        delegated_copy_->SetPosition(gfx::Point(5, 0));
+        delegated_copy_->SetPosition(gfx::PointF(5.f, 0.f));
 
         // Also set a new frame.
         SetFrameData(
             CreateFrameData(gfx::Rect(0, 0, 10, 10), gfx::Rect(4, 0, 1, 1)));
         break;
       case 18:
         // Set another new frame, both layers should be damaged in the same
         // ways.
         SetFrameData(
             CreateFrameData(gfx::Rect(0, 0, 10, 10), gfx::Rect(3, 3, 1, 1)));
@@ skipping 1651 matching lines @@
   }
 
   bool drew_with_pending_tree_;
 };
 
 // This test blocks activation which is not supported for single thread mode.
 MULTI_THREAD_BLOCKNOTIFY_TEST_F(LayerTreeHostDelegatedTestActiveFrameIsValid);
 
 }  // namespace
 }  // namespace cc