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

ash/display/unified_mouse_warp_controller.cc

Index: ash/display/unified_mouse_warp_controller.cc
diff --git a/ash/display/unified_mouse_warp_controller.cc b/ash/display/unified_mouse_warp_controller.cc
index 228360cfd9146c1b0d82ae714f463fd91492367a..37b85826356ed3b68aca3945219f29ebc6ee46a0 100644
--- a/ash/display/unified_mouse_warp_controller.cc
+++ b/ash/display/unified_mouse_warp_controller.cc
@@ -110,7 +110,8 @@ bool UnifiedMouseWarpController::WarpMouseCursor(ui::MouseEvent* event) {
       FindMirroringWindowTreeHostFromScreenPoint(point_in_unified_host);
   if (!host)
     return false;
-  point_in_native.Offset(host->GetBounds().x(), host->GetBounds().y());
+  point_in_native.Offset(host->GetBoundsInPixel().x(),
+                         host->GetBoundsInPixel().y());
 #endif
 
   return WarpMouseCursorInNativeCoords(point_in_native, point_in_unified_host,