Roll Clang r170392:r174491.

BUG=174873, 170629

Review URL: https://codereview.chromium.org/12220089

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@182241 0039d316-1c4b-4281-b951-d872f2087c98

build/common.gypi

@@ -2790,6 +2790,10 @@
               # Warns on switches on enums that cover all enum values but
               # also contain a default: branch. Chrome is full of that.
               '-Wno-covered-switch-default',
+
+              # TODO(thakis,hans): Remove once Clang doesn't warn about false
+              # positives in our code.
+              '-Wno-undefined-internal',
             ],
             'cflags!': [
               # Clang doesn't seem to know know this flag.
@@ -3374,6 +3378,10 @@
                 # Warns on switches on enums that cover all enum values but
                 # also contain a default: branch. Chrome is full of that.
                 '-Wno-covered-switch-default',
+
+                # TODO(thakis,hans): Remove once Clang doesn't warn about false
+                # positives in our code.
+                '-Wno-undefined-internal',
               ],
               'OTHER_CPLUSPLUSFLAGS': [
                 # gnu++11 instead of c++11 so that __ANSI_C__ doesn't get

tools/clang/scripts/update.sh

@@ -8,7 +8,7 @@
 # Do NOT CHANGE this if you don't know what you're doing -- see
 # https://code.google.com/p/chromium/wiki/UpdatingClang
 # Reverting problematic clang rolls is safe, though.
-CLANG_REVISION=170392
+CLANG_REVISION=174491
 # ASan Mac builders are pinned to this revision, see http://crbug.com/170629.
 CLANG_ASAN_MAC_REVISION=170392