Roll chromium_revision 375f736..91f1781

Relevant changes:
* buildtools: 51ca1f2..c27f95b
* tools/gyp: b13d8f2..487c0b6
* tools/swarming_client: 41036ec..1f8ba35

Clang version was not updated in this roll.


Review URL:

git-svn-id: 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/DEPS b/DEPS
index 22b5f89..d1b785f 100644
--- a/DEPS
+++ b/DEPS
@@ -9,7 +9,7 @@
   # Use this googlecode_url variable only if there is an internal mirror for it.
   # If you do not know, use the full path while defining your new deps entry.
   "googlecode_url": "",
-  "chromium_revision": "375f7364c3f315c394d3b7accbd7e236b7ea7b04",
+  "chromium_revision": "91f17816d094b792e9d8104b38c66185f2a0bd36",
 # NOTE: Prefer revision numbers to tags for svn deps. Use http rather than
diff --git a/tools/valgrind-webrtc/ b/tools/valgrind-webrtc/
index b8b398b..c97e2fc 100755
--- a/tools/valgrind-webrtc/
+++ b/tools/valgrind-webrtc/
@@ -100,6 +100,12 @@
                     help='Argument for --gtest_repeat')
   parser.add_option("--gtest_shuffle", action="store_true", default=False,
                     help="Randomize tests' orders on every iteration.")
+  parser.add_option("--gtest_break_on_failure", action="store_true",
+                    default=False,
+                    help="Drop in to debugger on assertion failure. Also "
+                         "useful for forcing tests to exit with a stack dump "
+                         "on the first assertion failure when running with "
+                         "--gtest_repeat=-1")
   parser.add_option('-v', '--verbose', action='store_true', default=False,
                     help='Verbose output - enable debug log messages')
   parser.add_option('', '--tool', dest='valgrind_tool', default='memcheck',