linux and chromeos: Turn on -Wunused-const-variable.

ash/wm/panels/panel_layout_manager.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 "ash/wm/panels/panel_layout_manager.h"
 
 #include <algorithm>
 #include <map>
 
 #include "ash/launcher/launcher.h"
@@ skipping 20 matching lines @@
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/vector2d.h"
 #include "ui/views/background.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 namespace internal {
 
 namespace {
-const int kPanelMarginEdge = 4;
-const int kPanelMarginMiddle = 8;
 const int kPanelIdealSpacing = 4;
 
 const float kMaxHeightFactor = .80f;
 const float kMaxWidthFactor = .50f;
 
 // Duration for panel animations.
 const int kPanelSlideDurationMilliseconds = 50;
 const int kCalloutFadeDurationMilliseconds = 50;
 
 // Offset used when sliding panel in/out of the launcher. Used for minimizing,
@@ skipping 814 matching lines @@
 
 void PanelLayoutManager::OnKeyboardBoundsChanging(
     const gfx::Rect& keyboard_bounds) {
   // This bounds change will have caused a change to the Shelf which does not
   // propogate automatically to this class, so manually recalculate bounds.
   OnWindowResized();
 }
 
 }  // namespace internal
 }  // namespace ash