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

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

 // 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.
 
 #include "ash/common/system/chromeos/palette/palette_utils.h"
 
 #include "ash/common/ash_switches.h"
+#include "ash/common/shelf/wm_shelf.h"
+#include "ash/common/system/chromeos/palette/palette_tray.h"
+#include "ash/common/system/status_area_widget.h"
+#include "ash/common/wm_shell.h"
+#include "ash/common/wm_window.h"
 #include "base/command_line.h"
+#include "ui/gfx/geometry/point.h"
 
 namespace ash {
 
 bool IsPaletteFeatureEnabled() {
   return base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kAshEnablePalette);
 }
 
 bool ArePaletteExperimentalFeaturesEnabled() {
   return base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kAshEnableExperimentalPaletteFeatures);
 }
 
+bool PaletteContainsPointInScreen(const gfx::Point& point) {
+  for (WmWindow* window : WmShell::Get()->GetAllRootWindows()) {
+    PaletteTray* palette_tray =
+        WmShelf::ForWindow(window)->GetStatusAreaWidget()->palette_tray();
+    if (palette_tray && palette_tray->ContainsPointInScreen(point))
+      return true;
+  }
+
+  return false;
+}
+
 }  // namespace ash