Support setting mouse cursor icon in Android N.

ui/base/cursor/cursors_android.cc

+// Copyright 2017 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/base/cursor/cursors_android.h"
+
+#include "third_party/WebKit/public/platform/WebCursorInfo.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/image/image_skia.h"
+#include "ui/resources/grit/ui_resources.h"
+
+using blink::WebCursorInfo;
+
+namespace ui {
+
+bool GetCursorBitmap(int type, SkBitmap* bitmap) {
+  DCHECK(bitmap);
+  int resource_id;
+  switch (type) {
+    // TODO(jaebaek): set types correctly
+    // after fixing http://crbug.com/584424.
+    case WebCursorInfo::kTypeMove:
+      resource_id = IDR_ANDROID_CURSOR_MOVE;
+      break;
+    case WebCursorInfo::kTypeMiddlePanning:
+      resource_id = IDR_ANDROID_CURSOR_MIDDLE_PANNING;
+      break;
+    case WebCursorInfo::kTypeEastWestResize:
+    case WebCursorInfo::kTypeNorthSouthResize:
+    case WebCursorInfo::kTypeEastResize:
+    case WebCursorInfo::kTypeNorthResize:
+    case WebCursorInfo::kTypeNorthEastResize:
+    case WebCursorInfo::kTypeNorthWestResize:
+    case WebCursorInfo::kTypeSouthResize:
+    case WebCursorInfo::kTypeSouthEastResize:
+    case WebCursorInfo::kTypeSouthWestResize:
+    case WebCursorInfo::kTypeWestResize:
+    case WebCursorInfo::kTypeProgress:
+    case WebCursorInfo::kTypeNotAllowed:
+    default:

[boliu, 2017/05/24 18:24:07]

avoid default

[jaebaek, 2017/05/29 12:40:03]

I also drop this file.

+      return false;
+  }
+
+  const SkBitmap* cursor_bitmap = ResourceBundle::GetSharedInstance()
+                                      .GetImageSkiaNamed(resource_id)
+                                      ->bitmap();
+  if (!cursor_bitmap)
+    return false;
+  *bitmap = *cursor_bitmap;
+  return true;
+}
+
+}  // namespace ui