Removal of dependencies on PlatformDevice classes.

chrome/browser/renderer_host/render_widget_host_view_win.cc

 // Copyright (c) 2011 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 "chrome/browser/renderer_host/render_widget_host_view_win.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/i18n/rtl.h"
@@ skipping 163 matching lines @@
          0,
          0,
          paint_rect.width(),
          paint_rect.height(),
          backing_store_dc,
          paint_rect.x(),
          paint_rect.y(),
          SRCCOPY);
   canvas.endPlatformPaint();
   canvas.FillRectInt(color, 0, 0, paint_rect.width(), paint_rect.height());
-  canvas.getTopPlatformDevice().drawToHDC(paint_dc, paint_rect.x(),
-                                          paint_rect.y(), NULL);
+  skia::platform_util::DrawToHDC(&canvas.getTopDevice(), paint_dc,

[alokp, 2011/05/18 03:25:42]

Could we rename this to DrawToNativeContext and change the argument from device
to canvas?

[Jeff Timanus, 2011/05/18 22:10:28]

Done.  I added a new routine in platform_canvas that forwards to this call, and
changed all call-sites to use the canvas version.

To keep the code uniform, I changed DrawContext (platform_device_mac), and
drawToHDC(platform_device_win) to DrawToNativeContext, and added a no-op stub to
the linux version.

+                                 paint_rect.x(), paint_rect.y(), NULL);
 }
 
 // The plugin wrapper window which lives in the browser process has this proc
 // as its window procedure. We only handle the WM_PARENTNOTIFY message sent by
 // windowed plugins for mouse input. This is forwarded off to the wrappers
 // parent which is typically the RVH window which turns on user gesture.
 LRESULT CALLBACK PluginWrapperWindowProc(HWND window, unsigned int message,
                                          WPARAM wparam, LPARAM lparam) {
   if (message == WM_PARENTNOTIFY) {
     switch (LOWORD(wparam)) {
@@ skipping 758 matching lines @@
     gfx::CanvasSkia canvas(dirty_rect.right - dirty_rect.left,
                            dirty_rect.bottom - dirty_rect.top,
                            true);  // opaque
     canvas.TranslateInt(-dirty_rect.left, -dirty_rect.top);
 
     const RECT& dc_rect = dc->m_ps.rcPaint;
     canvas.TileImageInt(background_, 0, 0,
                         dc_rect.right - dc_rect.left,
                         dc_rect.bottom - dc_rect.top);
 
-    canvas.getTopPlatformDevice().drawToHDC(*dc, dirty_rect.left,
-                                            dirty_rect.top, NULL);
+    skia::platform_util::DrawToHDC(&canvas.getTopDevice(), *dc,
+                                   dirty_rect.left, dirty_rect.top, NULL);
   } else {
     HBRUSH white_brush = reinterpret_cast<HBRUSH>(GetStockObject(WHITE_BRUSH));
     dc->FillRect(&dirty_rect, white_brush);
   }
 }
 
 void RenderWidgetHostViewWin::OnNCPaint(HRGN update_region) {
   // Do nothing.  This suppresses the resize corner that Windows would
   // otherwise draw for us.
 }
@@ skipping 802 matching lines @@
 }
 
 // static
 RenderWidgetHostView*
     RenderWidgetHostView::GetRenderWidgetHostViewFromNativeView(
         gfx::NativeView native_view) {
   return ::IsWindow(native_view) ?
       reinterpret_cast<RenderWidgetHostView*>(
           ViewProp::GetValue(native_view, kRenderWidgetHostViewKey)) : NULL;
 }