Removal of dependencies on PlatformDevice classes.

chrome/browser/renderer_host/render_widget_host_view_win.cc

Index: chrome/browser/renderer_host/render_widget_host_view_win.cc
===================================================================
--- chrome/browser/renderer_host/render_widget_host_view_win.cc	(revision 85672)
+++ chrome/browser/renderer_host/render_widget_host_view_win.cc	(working copy)
@@ -181,8 +181,8 @@
          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
@@ -961,8 +961,8 @@
                         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);