Removal of dependencies on PlatformDevice classes.

ui/base/clipboard/clipboard_linux.cc

Index: ui/base/clipboard/clipboard_linux.cc
===================================================================
--- ui/base/clipboard/clipboard_linux.cc	(revision 85672)
+++ ui/base/clipboard/clipboard_linux.cc	(working copy)
@@ -388,10 +388,10 @@
   gfx::CanvasSkia canvas(gdk_pixbuf_get_width(pixbuf.get()),
                          gdk_pixbuf_get_height(pixbuf.get()),
                          false);
-  cairo_t* context = canvas.beginPlatformPaint();
+  cairo_t* context = skia::BeginPlatformPaint(&canvas);
   gdk_cairo_set_source_pixbuf(context, pixbuf.get(), 0.0, 0.0);
   cairo_paint(context);
-  canvas.endPlatformPaint();
+  skia::EndPlatformPaint(&canvas);
   return canvas.ExtractBitmap();
 }