Support setting mouse cursor icon in Android N.

ui/android/view_android.cc

 // Copyright 2016 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/android/view_android.h"
 
 #include <algorithm>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/containers/adapters.h"
 #include "cc/layers/layer.h"
 #include "jni/ViewAndroidDelegate_jni.h"
+#include "third_party/WebKit/public/platform/WebCursorInfo.h"
 #include "ui/android/event_forwarder.h"
 #include "ui/android/view_client.h"
 #include "ui/android/window_android.h"
+#include "ui/base/cursor/cursors_android.h"
 #include "ui/base/layout.h"
 #include "ui/events/android/motion_event_android.h"
+#include "ui/gfx/android/java_bitmap.h"
 #include "url/gurl.h"
 
 namespace ui {
 
 using base::android::ConvertUTF8ToJavaString;
 using base::android::JavaRef;
 using base::android::ScopedJavaLocalRef;
+using blink::WebCursorInfo;
 
 ViewAndroid::ScopedAnchorView::ScopedAnchorView(
     JNIEnv* env,
     const JavaRef<jobject>& jview,
     const JavaRef<jobject>& jdelegate)
     : view_(env, jview.obj()), delegate_(env, jdelegate.obj()) {
   // If there's a view, then we need a delegate to remove it.
   DCHECK(!jdelegate.is_null() || jview.is_null());
 }
 
@@ skipping 209 matching lines @@
 bool ViewAndroid::StartDragAndDrop(const JavaRef<jstring>& jtext,
                                    const JavaRef<jobject>& jimage) {
   ScopedJavaLocalRef<jobject> delegate(GetViewAndroidDelegate());
   if (delegate.is_null())
     return false;
   JNIEnv* env = base::android::AttachCurrentThread();
   return Java_ViewAndroidDelegate_startDragAndDrop(env, delegate, jtext,
                                                    jimage);
 }
 
+void ViewAndroid::OnCursorChanged(int type,
+                                  const SkBitmap& custom_image,
+                                  const gfx::Point& hotspot) {
+  ScopedJavaLocalRef<jobject> delegate(GetViewAndroidDelegate());
+  if (delegate.is_null())
+    return;
+  JNIEnv* env = base::android::AttachCurrentThread();
+  SkBitmap drawn_cursor_image;
+  if (type == WebCursorInfo::kTypeCustom) {
+    ScopedJavaLocalRef<jobject> java_bitmap =
+        gfx::ConvertToJavaBitmap(&custom_image);
+    Java_ViewAndroidDelegate_onCursorChangedToCustom(env, delegate, java_bitmap,
+                                                     hotspot.x(), hotspot.y());
+  } else if (GetCursorBitmap(type, &drawn_cursor_image)) {
+    ScopedJavaLocalRef<jobject> java_bitmap =
+        gfx::ConvertToJavaBitmap(&drawn_cursor_image);
+    Java_ViewAndroidDelegate_onCursorChangedToCustom(env, delegate, java_bitmap,
+                                                     hotspot.x(), hotspot.y());
+  } else {
+    Java_ViewAndroidDelegate_onCursorChanged(env, delegate, type);
+  }
+}
+
 void ViewAndroid::OnBackgroundColorChanged(unsigned int color) {
   ScopedJavaLocalRef<jobject> delegate(GetViewAndroidDelegate());
   if (delegate.is_null())
     return;
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_ViewAndroidDelegate_onBackgroundColorChanged(env, delegate, color);
 }
 
 void ViewAndroid::OnTopControlsChanged(float top_controls_offset,
                                        float top_content_offset) {
@@ skipping 90 matching lines @@
         matched = bound.Contains(e->GetX(0), e->GetY(0));
       }
       if (matched && child->HitTest(send_to_client, *e))
         return true;
     }
   }
   return false;
 }
 
 }  // namespace ui