cros/ash: If the partial magnifier is active, do not consume input events if over palette views.

ash/common/system/chromeos/palette/palette_utils.h

 // Copyright 2016 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.
 
 #ifndef ASH_COMMON_SYSTEM_CHROMEOS_PALETTE_PALETTE_UTILS_H_
 #define ASH_COMMON_SYSTEM_CHROMEOS_PALETTE_PALETTE_UTILS_H_
 
 #include "ash/ash_export.h"
 
+namespace ui {
+class LocatedEvent;
+}
+
 namespace ash {
 
 // Returns true if the palette feature is enabled. The palette itself may have
 // been disabled by the user.
 ASH_EXPORT bool IsPaletteFeatureEnabled();
 
 // Are experimental palette features enabled?
 ASH_EXPORT bool ArePaletteExperimentalFeaturesEnabled();
 
+// Returns true if either the palette icon or the palette widget contain the
+// given point.
+ASH_EXPORT bool PaletteContainsEvent(ui::LocatedEvent* event);
+
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_CHROMEOS_PALETTE_PALETTE_UTILS_H_