Consolidate Windows bitmap and DC code

printing/emf_win.cc

Index: printing/emf_win.cc
diff --git a/printing/emf_win.cc b/printing/emf_win.cc
index b2699fdfe4a9df963dfacac9e5f3e00cd195486e..160f0306c6b9ce409cf929c4159de790fefa35bf 100644
--- a/printing/emf_win.cc
+++ b/printing/emf_win.cc
@@ -106,7 +106,7 @@ class RasterBitmap {
     ::SetGraphicsMode(context_.Get(), GM_ADVANCED);
     void* bits = NULL;
     gfx::Rect bitmap_rect(raster_size);
-    gfx::CreateBitmapHeader(raster_size.width(), raster_size.height(),
+    skia::CreateBitmapHeader(raster_size.width(), raster_size.height(),
                             &header_.bmiHeader);
     bitmap_.reset(CreateDIBSection(context_.Get(), &header_, DIB_RGB_COLORS,
                                    &bits, NULL, 0));
@@ -388,7 +388,7 @@ bool Emf::Record::SafePlayback(Emf::EnumerationContext* context) const {
             return false;
           }
           BITMAPINFOHEADER bmi = {0};
-          gfx::CreateBitmapHeader(bitmap->width(), bitmap->height(), &bmi);
+          skia::CreateBitmapHeader(bitmap->width(), bitmap->height(), &bmi);
           res = (0 != StretchDIBits(hdc, sdib_record->xDest, sdib_record->yDest,
                                     sdib_record->cxDest,
                                     sdib_record->cyDest, sdib_record->xSrc,