aura: Stop converting Rect to RectF implicitly.

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.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/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
 
 #include <X11/extensions/shape.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/Xatom.h>
 #include <X11/Xregion.h>
@@ skipping 2009 matching lines @@
                     &border_width, &depth)) {
     NOTIMPLEMENTED();
     return gfx::Rect(0, 0, 10, 10);
   }
 
   return gfx::Rect(x, y, width, height);
 }
 
 gfx::Rect DesktopWindowTreeHostX11::ToDIPRect(
     const gfx::Rect& rect_in_pixels) const {
-  gfx::RectF rect_in_dip = rect_in_pixels;
+  gfx::RectF rect_in_dip = gfx::RectF(rect_in_pixels);
   GetRootTransform().TransformRectReverse(&rect_in_dip);
   return gfx::ToEnclosingRect(rect_in_dip);
 }
 
 gfx::Rect DesktopWindowTreeHostX11::ToPixelRect(
     const gfx::Rect& rect_in_dip) const {
-  gfx::RectF rect_in_pixels = rect_in_dip;
+  gfx::RectF rect_in_pixels = gfx::RectF(rect_in_dip);
   GetRootTransform().TransformRect(&rect_in_pixels);
   return gfx::ToEnclosingRect(rect_in_pixels);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // DesktopWindowTreeHost, public:
 
 // static
 DesktopWindowTreeHost* DesktopWindowTreeHost::Create(
     internal::NativeWidgetDelegate* native_widget_delegate,
     DesktopNativeWidgetAura* desktop_native_widget_aura) {
   return new DesktopWindowTreeHostX11(native_widget_delegate,
                                       desktop_native_widget_aura);
 }
 
 // static
 ui::NativeTheme* DesktopWindowTreeHost::GetNativeTheme(aura::Window* window) {
   const views::LinuxUI* linux_ui = views::LinuxUI::instance();
   if (linux_ui) {
     ui::NativeTheme* native_theme = linux_ui->GetNativeTheme(window);
     if (native_theme)
       return native_theme;
   }
 
   return ui::NativeTheme::instance();
 }
 
 }  // namespace views