Implemented prototype for new ink drop specs.

ui/views/animation/ink_drop_delegate.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 "ui/views/animation/ink_drop_delegate.h"
-
-#include "third_party/skia/include/core/SkPaint.h"
-#include "ui/compositor/layer.h"
-#include "ui/compositor/paint_recorder.h"
-#include "ui/gfx/canvas.h"
-
-namespace views {
-
-InkDropDelegate::InkDropDelegate(ui::Layer* layer,
-                                 SkColor color,
-                                 int circle_radius,
-                                 int rounded_rect_corner_radius)
-    : layer_(layer),
-      color_(color),
-      should_render_circle_(true),
-      circle_radius_(circle_radius),
-      rounded_rect_corner_radius_(rounded_rect_corner_radius) {}
-
-InkDropDelegate::~InkDropDelegate() {}
-
-void InkDropDelegate::OnPaintLayer(const ui::PaintContext& context) {
-  SkPaint paint;
-  paint.setColor(color_);
-  paint.setFlags(SkPaint::kAntiAlias_Flag);
-  paint.setStyle(SkPaint::kFill_Style);
-
-  gfx::Rect bounds = layer_->bounds();
-
-  ui::PaintRecorder recorder(context, layer_->size());
-  gfx::Canvas* canvas = recorder.canvas();
-  if (should_render_circle()) {
-    gfx::Point midpoint(bounds.width() * 0.5f, bounds.height() * 0.5f);
-    canvas->DrawCircle(midpoint, circle_radius_, paint);
-  } else {
-    canvas->DrawRoundRect(bounds, rounded_rect_corner_radius_, paint);
-  }
-}
-
-void InkDropDelegate::OnDelegatedFrameDamage(
-    const gfx::Rect& damage_rect_in_dip) {}
-
-void InkDropDelegate::OnDeviceScaleFactorChanged(float device_scale_factor) {}
-
-base::Closure InkDropDelegate::PrepareForLayerBoundsChange() {
-  return base::Closure();
-}
-
-}  // namespace views