Remove implicit flooring Scale() method from Point and Size.

content/browser/renderer_host/compositing_iosurface_mac.mm

 // Copyright (c) 2012 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 "content/browser/renderer_host/compositing_iosurface_mac.h"
 
 #include <OpenGL/OpenGL.h>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/message_loop.h"
 #include "base/threading/platform_thread.h"
 #include "content/common/content_constants_internal.h"
 #include "content/public/browser/browser_thread.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_switches.h"
 #include "ui/gl/gpu_switching_manager.h"
+#include "ui/gfx/size_conversions.h"
 #include "ui/surface/io_surface_support_mac.h"
 
 #ifdef NDEBUG
 #define CHECK_GL_ERROR()
 #else
 #define CHECK_GL_ERROR() do {                                           \
     GLenum gl_error = glGetError();                                     \
     LOG_IF(ERROR, gl_error != GL_NO_ERROR) << "GL Error :" << gl_error; \
   } while (0)
 #endif
@@ skipping 288 matching lines @@
 void CompositingIOSurfaceMac::DrawIOSurface(NSView* view, float scale_factor) {
   CGLSetCurrentContext(cglContext_);
 
   bool has_io_surface = MapIOSurfaceToTexture(io_surface_handle_);
 
   TRACE_EVENT1("browser", "CompositingIOSurfaceMac::DrawIOSurface",
                "has_io_surface", has_io_surface);
 
   [glContext_ setView:view];
   gfx::Size window_size(NSSizeToCGSize([view frame].size));
-  gfx::Size pixel_window_size = window_size.Scale(scale_factor);
+  gfx::Size pixel_window_size = gfx::ToFlooredSize(
+      window_size.Scale(scale_factor));
   glViewport(0, 0, pixel_window_size.width(), pixel_window_size.height());
 
   // TODO: After a resolution change, the DPI-ness of the view and the
   // IOSurface might not be in sync.
-  io_surface_size_ = pixel_io_surface_size_.Scale(1.0 / scale_factor);
+  io_surface_size_ = gfx::ToFlooredSize(
+      pixel_io_surface_size_.Scale(1.0 / scale_factor));
   quad_.set_size(io_surface_size_, pixel_io_surface_size_);
 
   glMatrixMode(GL_PROJECTION);
   glLoadIdentity();
 
   // Note that the projection keeps things in view units, so the use of
   // window_size / io_surface_size_ (as opposed to the pixel_ variants) below is
   // correct.
   glOrtho(0, window_size.width(), window_size.height(), 0, -1, 1);
   glMatrixMode(GL_MODELVIEW);
@@ skipping 489 matching lines @@
   glDeleteFramebuffersEXT(1, &copy_context_.frame_buffer); CHECK_GL_ERROR();
   glDeleteTextures(1, &copy_context_.frame_buffer_texture); CHECK_GL_ERROR();
   glDeleteBuffers(1, &copy_context_.pixel_buffer); CHECK_GL_ERROR();
   if (copy_context_.use_fence) {
     glDeleteFencesAPPLE(1, &copy_context_.fence); CHECK_GL_ERROR();
   }
   copy_context_.Reset();
 }
 
 }  // namespace content