android: move overscroll effects to ui/

ui/android/edge_effect_base.cc

 // Copyright 2015 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 "content/browser/android/edge_effect_base.h"
+#include "ui/android/edge_effect_base.h"
 
-namespace content {
+namespace ui {
 
 // static
 gfx::Transform EdgeEffectBase::ComputeTransform(Edge edge,
                                                 const gfx::SizeF& viewport_size,
                                                 float offset) {
   // Transforms assume the edge layers are anchored to their *top center point*.
   switch (edge) {
     case EDGE_TOP:
       return gfx::Transform(1, 0, 0, 1, 0, offset);
     case EDGE_LEFT:
@@ skipping 21 matching lines @@
       return viewport_size;
     case EDGE_LEFT:
     case EDGE_RIGHT:
       return gfx::SizeF(viewport_size.height(), viewport_size.width());
     default:
       NOTREACHED() << "Invalid edge: " << edge;
       return gfx::SizeF();
   };
 }
 
-}  // namespace content
+}  // namespace ui