Rename WindowTreeHost G|SetBounds to indicate they are in pixels.

ui/wm/core/default_screen_position_client.cc

Index: ui/wm/core/default_screen_position_client.cc
diff --git a/ui/wm/core/default_screen_position_client.cc b/ui/wm/core/default_screen_position_client.cc
index 67520bb5ce654c088ed47b76c25b94acf7622c7f..4d7a45359d4f805a6d1172b08380e1a0757dff77 100644
--- a/ui/wm/core/default_screen_position_client.cc
+++ b/ui/wm/core/default_screen_position_client.cc
@@ -21,7 +21,7 @@ gfx::Point DefaultScreenPositionClient::GetOriginInScreen(
     const aura::Window* root_window) {
   aura::Window* window = const_cast<aura::Window*>(root_window);
   display::Screen* screen = display::Screen::GetScreen();
-  gfx::Rect screen_bounds = root_window->GetHost()->GetBounds();
+  gfx::Rect screen_bounds = root_window->GetHost()->GetBoundsInPixels();
   gfx::Rect dip_bounds = screen->ScreenToDIPRectInWindow(window, screen_bounds);
   return dip_bounds.origin();
 }