keep only one typedef for the native drawing context

content/browser/compositor/software_output_device_win.cc

Index: content/browser/compositor/software_output_device_win.cc
diff --git a/content/browser/compositor/software_output_device_win.cc b/content/browser/compositor/software_output_device_win.cc
index 3ab7677a5432616240490ccee4ae120ab88f4250..0e2972b4872cdd85ea21d6b3565bd985c2e3c731 100644
--- a/content/browser/compositor/software_output_device_win.cc
+++ b/content/browser/compositor/software_output_device_win.cc
@@ -181,7 +181,7 @@ void SoftwareOutputDeviceWin::EndPaint() {
     SetWindowLong(hwnd_, GWL_EXSTYLE, style);
 
     skia::ScopedPlatformPaint spp(contents_.get());
-    HDC dib_dc = spp.GetPlatformSurface();
+    HDC dib_dc = spp.GetNativeDrawingContext();
     ::UpdateLayeredWindow(hwnd_, NULL, &position, &size, dib_dc, &zero,
                           RGB(0xFF, 0xFF, 0xFF), &blend, ULW_ALPHA);
   } else {