Eliminate ash::internal namespace

ash/wm/workspace/magnetism_matcher.h

 // 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.
 
 #ifndef ASH_WM_WORKSPACE_MAGNETISM_MATCHER_H_
 #define ASH_WM_WORKSPACE_MAGNETISM_MATCHER_H_
 
 #include <utility>
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/scoped_vector.h"
 #include "ui/gfx/rect.h"
 
 namespace ash {
-namespace internal {
 
 enum MagnetismEdge {
   MAGNETISM_EDGE_TOP    = 1 << 0,
   MAGNETISM_EDGE_LEFT   = 1 << 1,
   MAGNETISM_EDGE_BOTTOM = 1 << 2,
   MAGNETISM_EDGE_RIGHT  = 1 << 3,
 };
 
 const uint32 kAllMagnetismEdges =
     MAGNETISM_EDGE_TOP | MAGNETISM_EDGE_LEFT | MAGNETISM_EDGE_BOTTOM |
@@ skipping 149 matching lines @@
                              SecondaryMagnetismEdge* secondary_edge) const;
 
   // The edges to match against.
   const int32 edges_;
 
   ScopedVector<MagnetismEdgeMatcher> matchers_;
 
   DISALLOW_COPY_AND_ASSIGN(MagnetismMatcher);
 };
 
-}  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_WORKSPACE_MAGNETISM_MATCHER_H_