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

remoting/client/gl_cursor.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 "remoting/client/gl_cursor.h"
 
 #include "remoting/base/util.h"
 #include "remoting/client/gl_canvas.h"
 #include "remoting/client/gl_math.h"
 #include "remoting/client/gl_render_layer.h"
@@ skipping 31 matching lines @@
   current_cursor_width_ = cursor_shape.width();
   current_cursor_height_ = cursor_shape.height();
   current_cursor_hotspot_x_ = cursor_shape.hotspot_x();
   current_cursor_hotspot_y_ = cursor_shape.hotspot_y();
 
   SetCurrentCursorShape(size_changed);
 
   SetCursorPosition(cursor_x_, cursor_y_);
 }
 
-void GlCursor::SetCursorPosition(int x, int y) {
+void GlCursor::SetCursorPosition(float x, float y) {
   cursor_x_ = x;
   cursor_y_ = y;
   if (!current_cursor_data_) {
     return;
   }
   std::array<float, 8> positions;
   FillRectangleVertexPositions(
       x - current_cursor_hotspot_x_, y - current_cursor_hotspot_y_,
       current_cursor_width_, current_cursor_height_, &positions);
   if (layer_) {
@@ skipping 29 matching lines @@
       layer_->SetTexture(current_cursor_data_.get(), current_cursor_width_,
                          current_cursor_height_, 0);
     } else {
       layer_->UpdateTexture(current_cursor_data_.get(), 0, 0,
                             current_cursor_width_, current_cursor_width_, 0);
     }
   }
 }
 
 }  // namespace remoting