Bug 1308025: Disable -Wunreachable-code compile warning for skia (which includes some intentionally disabled code). r=gw280

MozReview-Commit-ID: FRLbZR4anWI

--HG--
extra : rebase_source : 6a5dbace62ac7d9687bac52670711014a3d744dc

gfx/skia/generate_mozbuild.py

@@ -125,6 +125,7 @@ if CONFIG['GNU_CXX'] or CONFIG['CLANG_CL']:
         '-Wno-overloaded-virtual',
         '-Wno-shadow',
         '-Wno-sign-compare',
+        '-Wno-unreachable-code',
         '-Wno-unused-function',
     ]
 if CONFIG['GNU_CXX'] and not CONFIG['CLANG_CXX'] and not CONFIG['CLANG_CL']:

gfx/skia/moz.build

@@ -657,6 +657,7 @@ if CONFIG['GNU_CXX'] or CONFIG['CLANG_CL']:
         '-Wno-overloaded-virtual',
         '-Wno-shadow',
         '-Wno-sign-compare',
+        '-Wno-unreachable-code',
         '-Wno-unused-function',
     ]
 if CONFIG['GNU_CXX'] and not CONFIG['CLANG_CXX'] and not CONFIG['CLANG_CL']: