[Remoting Android] Use floating point coords for rendering the cursor

remoting/android/java/src/org/chromium/chromoting/jni/GlDisplay.java

 // 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.
 
 package org.chromium.chromoting.jni;
 
 import android.view.Surface;
 
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
@@ skipping 68 matching lines @@
      * Sets the transformation matrix (in pixel coordinates).
      * @param matrix the transformation matrix
      */
     public void pixelTransformationChanged(float[] matrix) {
         if (mNativeJniGlDisplay != 0) {
             nativeOnPixelTransformationChanged(mNativeJniGlDisplay, matrix);
         }
     }
 
     /** Moves the cursor to the corresponding location on the desktop. */
-    public void cursorPixelPositionChanged(int x, int y) {
+    public void cursorPixelPositionChanged(float x, float y) {
         if (mNativeJniGlDisplay != 0) {
             nativeOnCursorPixelPositionChanged(mNativeJniGlDisplay, x, y);
         }
     }
 
     /**
      * Decides whether the cursor should be shown on the canvas.
      */
     public void cursorVisibilityChanged(boolean visible) {
         if (mNativeJniGlDisplay != 0) {
@@ skipping 33 matching lines @@
      * by the OpenGL renderer.
      */
     public Event<Void> onCanvasRendered() {
         return mOnCanvasRendered;
     }
 
     /**
      * Shows the cursor input feedback animation with the given diameter at the given desktop
      * location.
      */
-    public void showCursorInputFeedback(int x, int y, float diameter) {
+    public void showCursorInputFeedback(float x, float y, float diameter) {
         if (mNativeJniGlDisplay != 0) {
             nativeOnCursorInputFeedback(mNativeJniGlDisplay, x, y, diameter);
         }
     }
 
     @CalledByNative
     private void initializeClient(Client client) {
         client.setDesktopViewFactory(new DesktopViewFactory() {
             @Override
             public AbstractDesktopView createDesktopView(Desktop desktop, Client client) {
                 return new GlDesktopView(GlDisplay.this, desktop, client);
             }
         });
     }
 
     @CalledByNative
     private static GlDisplay createJavaDisplayObject(long nativeDisplayHandler) {
         return new GlDisplay(nativeDisplayHandler);
     }
 
     private native void nativeOnSurfaceCreated(long nativeJniGlDisplayHandler, Surface surface);
     private native void nativeOnSurfaceChanged(long nativeJniGlDisplayHandler,
                                                int width, int height);
     private native void nativeOnSurfaceDestroyed(long nativeJniGlDisplayHandler);
     private native void nativeOnPixelTransformationChanged(long nativeJniGlDisplayHandler,
                                                            float[] matrix);
     private native void nativeOnCursorPixelPositionChanged(long nativeJniGlDisplayHandler,
-                                                           int x, int y);
+                                                           float x, float y);
     private native void nativeOnCursorInputFeedback(long nativeJniGlDisplayHandler,
-                                                    int x, int y, float diameter);
+                                                    float x, float y, float diameter);
     private native void nativeOnCursorVisibilityChanged(long nativeJniGlDisplayHandler,
                                                         boolean visible);
 }