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

remoting/client/gl_renderer.h

 // 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.
 
 #ifndef REMOTING_CLIENT_GL_RENDERER_H_
 #define REMOTING_CLIENT_GL_RENDERER_H_
 
 #include <queue>
 
 #include "base/callback.h"
@@ skipping 44 matching lines @@
   // 3 by 3 transformation matrix, [ m0, m1, m2, m3, m4, m5, m6, m7, m8 ].
   //
   // | m0, m1, m2, |   | x |
   // | m3, m4, m5, | * | y |
   // | m6, m7, m8  |   | 1 |
   //
   // The final size of the canvas will be (m0*canvas_width, m4*canvas_height)
   // and the top-left corner will be (m2, m5) in pixel coordinates.
   void OnPixelTransformationChanged(const std::array<float, 9>& matrix);
 
-  void OnCursorMoved(int x, int y);
+  void OnCursorMoved(float x, float y);
 
-  void OnCursorInputFeedback(int x, int y, float diameter);
+  void OnCursorInputFeedback(float x, float y, float diameter);
 
   void OnCursorVisibilityChanged(bool visible);
 
   // Called when a desktop frame is received.
   // The size of the canvas is determined by the dimension of the desktop frame.
   // |done| will be queued up and called on the display thread after the actual
   // rendering happens.
   void OnFrameReceived(std::unique_ptr<webrtc::DesktopFrame> frame,
                        const base::Closure& done);
 
@@ skipping 50 matching lines @@
   base::ThreadChecker thread_checker_;
   base::WeakPtr<GlRenderer> weak_ptr_;
   base::WeakPtrFactory<GlRenderer> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GlRenderer);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_GL_RENDERER_H_