add SkCanvas::drawDRRect

gyp/gmslides.gypi

 # include this gypi to include all the golden master slides.
 {
   'include_dirs': [
     '../gm',
     # include dirs needed by particular GMs
     '../src/utils/debugger',
     '../src/images',
     '../src/lazy',
   ],
   'sources': [
@@ skipping 48 matching lines @@
     '../gm/degeneratesegments.cpp',
     '../gm/dashcubics.cpp',
     '../gm/dashing.cpp',
     '../gm/deviceproperties.cpp',
     '../gm/distantclip.cpp',
     '../gm/displacement.cpp',
     '../gm/downsamplebitmap.cpp',
     '../gm/drawbitmaprect.cpp',
     '../gm/drawlooper.cpp',
     '../gm/dropshadowimagefilter.cpp',
+    '../gm/drrect.cpp',
     '../gm/extractbitmap.cpp',
     '../gm/emptypath.cpp',
     '../gm/fatpathfill.cpp',
     '../gm/factory.cpp',
     '../gm/filltypes.cpp',
     '../gm/filltypespersp.cpp',
     '../gm/filterbitmap.cpp',
     '../gm/fontcache.cpp',
     '../gm/fontmgr.cpp',
     '../gm/fontscaler.cpp',
@@ skipping 97 matching lines @@
     # Files needed by particular GMs
     '../src/utils/debugger/SkDrawCommand.h',
     '../src/utils/debugger/SkDrawCommand.cpp',
     '../src/utils/debugger/SkDebugCanvas.h',
     '../src/utils/debugger/SkDebugCanvas.cpp',
     '../src/utils/debugger/SkObjectParser.h',
     '../src/utils/debugger/SkObjectParser.cpp',
 
   ],
 }