Support setting mouse cursor icon in Android N.

ui/android/view_android.h

 // Copyright 2013 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.
 
 #ifndef UI_ANDROID_VIEW_ANDROID_H_
 #define UI_ANDROID_VIEW_ANDROID_H_
 
 #include <list>
 
 #include "base/android/jni_weak_ref.h"
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
 #include "ui/android/ui_android_export.h"
 #include "ui/gfx/geometry/rect_f.h"
 
+class SkBitmap;
+
 namespace cc {
 class Layer;
 }
 
+namespace gfx {
+class Point;
+}
+
 namespace ui {
 class EventForwarder;
 class MotionEventAndroid;
 class ViewClient;
 class WindowAndroid;
 
 // A simple container for a UI layer.
 // At the root of the hierarchy is a WindowAndroid, when attached.
 // Dispatches input/view events coming from Java layer. Hit testing against
 // those events is implemented so that the |ViewClient| will be invoked
@@ skipping 98 matching lines @@
   void RemoveFromParent();
 
   // Sets the layout relative to parent. Used to do hit testing against events.
   void SetLayout(LayoutParams params);
 
   bool StartDragAndDrop(const base::android::JavaRef<jstring>& jtext,
                         const base::android::JavaRef<jobject>& jimage);
 
   gfx::Size GetPhysicalBackingSize();
   void OnPhysicalBackingSizeChanged(const gfx::Size& size);
+  void OnCursorChanged(int type,
+                       const SkBitmap& custom_image,
+                       const gfx::Point& hotspot);
   void OnBackgroundColorChanged(unsigned int color);
   void OnTopControlsChanged(float top_controls_offset,
                             float top_content_offset);
   void OnBottomControlsChanged(float bottom_controls_offset,
                                float bottom_content_offset);
   int GetSystemWindowInsetBottom();
 
   ScopedAnchorView AcquireAnchorView();
   void SetAnchorRect(const base::android::JavaRef<jobject>& anchor,
                      const gfx::RectF& bounds);
@@ skipping 59 matching lines @@
 
   gfx::Vector2dF content_offset_;  // in CSS pixel.
   std::unique_ptr<EventForwarder> event_forwarder_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewAndroid);
 };
 
 }  // namespace ui
 
 #endif  // UI_ANDROID_VIEW_ANDROID_H_