Delete athena/

athena/util/drag_handle.cc

Index: athena/util/drag_handle.cc
diff --git a/athena/util/drag_handle.cc b/athena/util/drag_handle.cc
deleted file mode 100644
index ad19c9adb16ee375d4b6e53d9289dae2ec2ea966..0000000000000000000000000000000000000000
--- a/athena/util/drag_handle.cc
+++ /dev/null
@@ -1,145 +0,0 @@
-// 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 "athena/util/drag_handle.h"
-
-#include "ui/views/background.h"
-#include "ui/views/view.h"
-
-namespace athena {
-namespace {
-
-const SkColor kDragHandleColorNormal = SK_ColorGRAY;
-const SkColor kDragHandleColorHot = SK_ColorWHITE;
-
-// This view notifies its delegate of the touch scroll gestures performed on it.
-class DragHandleView : public views::View {
- public:
-  DragHandleView(DragHandleScrollDirection scroll_direction,
-                 DragHandleScrollDelegate* delegate,
-                 int preferred_width,
-                 int preferred_height);
-  ~DragHandleView() override;
-
- private:
-  void SetColor(SkColor color);
-
-  void SetIsScrolling(bool scrolling);
-
-  // views::View:
-  virtual gfx::Size GetPreferredSize() const override;
-  virtual void OnGestureEvent(ui::GestureEvent* event) override;
-
-  bool scroll_in_progress_;
-  DragHandleScrollDelegate* delegate_;
-  DragHandleScrollDirection scroll_direction_;
-  SkColor color_;
-  float scroll_start_location_;
-  const int preferred_width_;
-  const int preferred_height_;
-
-  DISALLOW_COPY_AND_ASSIGN(DragHandleView);
-};
-
-DragHandleView::DragHandleView(DragHandleScrollDirection scroll_direction,
-                               DragHandleScrollDelegate* delegate,
-                               int preferred_width,
-                               int preferred_height)
-    : scroll_in_progress_(false),
-      delegate_(delegate),
-      scroll_direction_(scroll_direction),
-      color_(SK_ColorTRANSPARENT),
-      preferred_width_(preferred_width),
-      preferred_height_(preferred_height) {
-  SetColor(kDragHandleColorNormal);
-}
-
-DragHandleView::~DragHandleView() {
-}
-
-void DragHandleView::SetColor(SkColor color) {
-  if (color_ == color)
-    return;
-  color_ = color;
-  set_background(views::Background::CreateSolidBackground(color_));
-  SchedulePaint();
-}
-
-void DragHandleView::SetIsScrolling(bool scrolling) {
-  if (scroll_in_progress_ == scrolling)
-    return;
-  scroll_in_progress_ = scrolling;
-  if (!scroll_in_progress_)
-    scroll_start_location_ = 0;
-}
-
-// views::View:
-gfx::Size DragHandleView::GetPreferredSize() const {
-  return gfx::Size(preferred_width_, preferred_height_);
-}
-
-void DragHandleView::OnGestureEvent(ui::GestureEvent* event) {
-  SkColor change_color = SK_ColorTRANSPARENT;
-  if (event->type() == ui::ET_GESTURE_BEGIN &&
-      event->details().touch_points() == 1) {
-    change_color = kDragHandleColorHot;
-  } else if (event->type() == ui::ET_GESTURE_END &&
-             event->details().touch_points() == 1) {
-    change_color = kDragHandleColorNormal;
-  }
-
-  if (change_color != SK_ColorTRANSPARENT) {
-    SetColor(change_color);
-    event->SetHandled();
-    return;
-  }
-
-  if (event->type() == ui::ET_GESTURE_SCROLL_BEGIN) {
-    if (scroll_in_progress_)
-      return;
-    float delta;
-    if (scroll_direction_ == DRAG_HANDLE_VERTICAL) {
-      delta = event->details().scroll_y_hint();
-      scroll_start_location_ = event->root_location().y();
-    } else {
-      delta = event->details().scroll_x_hint();
-      scroll_start_location_ = event->root_location().x();
-    }
-    delegate_->HandleScrollBegin(delta);
-    SetIsScrolling(true);
-    event->SetHandled();
-  } else if (event->type() == ui::ET_GESTURE_SCROLL_END ||
-             event->type() == ui::ET_SCROLL_FLING_START) {
-    if (!scroll_in_progress_)
-      return;
-    float velocity = 0.0f;
-    if (event->type() == ui::ET_SCROLL_FLING_START)
-      velocity = event->details().velocity_x();
-    delegate_->HandleScrollEnd(velocity);
-    SetColor(kDragHandleColorNormal);
-    SetIsScrolling(false);
-    event->SetHandled();
-  } else if (event->type() == ui::ET_GESTURE_SCROLL_UPDATE) {
-    if (!scroll_in_progress_)
-      return;
-    float delta = scroll_direction_ == DRAG_HANDLE_VERTICAL
-                      ? event->root_location().y() - scroll_start_location_
-                      : event->root_location().x() - scroll_start_location_;
-    delegate_->HandleScrollUpdate(delta);
-    event->SetHandled();
-  }
-}
-
-}  // namespace
-
-views::View* CreateDragHandleView(DragHandleScrollDirection scroll_direction,
-                                  DragHandleScrollDelegate* delegate,
-                                  int preferred_width,
-                                  int preferred_height) {
-  views::View* view = new DragHandleView(
-      scroll_direction, delegate, preferred_width, preferred_height);
-  return view;
-}
-
-}  // namespace athena