android: move overscroll effects to ui/

ui/android/overscroll_refresh.cc

 // Copyright 2014 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/overscroll_refresh.h"
+#include "ui/android/overscroll_refresh.h"
 
 #include "base/logging.h"
 
-namespace content {
+namespace ui {
 namespace {
 
 // Experimentally determined constant used to allow activation even if touch
 // release results in a small upward fling (quite common during a slow scroll).
 const float kMinFlingVelocityForActivation = -500.f;
 
 }  // namespace
 
 OverscrollRefresh::OverscrollRefresh(OverscrollRefreshHandler* handler)
     : scrolled_to_top_(true),
@@ skipping 74 matching lines @@
   scrolled_to_top_ = content_scroll_offset.y() == 0;
   overflow_y_hidden_ = root_overflow_y_hidden;
 }
 
 void OverscrollRefresh::Release(bool allow_refresh) {
   if (scroll_consumption_state_ == ENABLED)
     handler_->PullRelease(allow_refresh);
   scroll_consumption_state_ = DISABLED;
 }
 
-}  // namespace content
+}  // namespace ui