Update from https://crrev.com/315085

This includes the switch to libc++ on Android.

Other fixes:

*) Add (dumb) impl of OrderingBarrier() to command buffer
*) "base/debug/trace_event.h" -> "base/trace_event/trace_event.h"
*) Added a few <cmath> includes to sky

Review URL: https://codereview.chromium.org/903273002
diff --git a/base/base_unittests.isolate b/base/base_unittests.isolate
index f561d20..0822b24 100644
--- a/base/base_unittests.isolate
+++ b/base/base_unittests.isolate
@@ -20,6 +20,8 @@
           '--test-launcher-bot-mode',
           '--asan=<(asan)',
           '--lsan=<(lsan)',
+          '--msan=<(msan)',
+          '--tsan=<(tsan)',
         ],
         'files': [
           '../testing/xvfb.py',
@@ -51,6 +53,15 @@
           '--test-launcher-bot-mode',
           '--asan=<(asan)',
           '--lsan=<(lsan)',
+          '--msan=<(msan)',
+          '--tsan=<(tsan)',
+        ],
+      },
+    }],
+    ['OS=="mac" and asan==1', {
+      'variables': {
+        'files': [
+          '<(PRODUCT_DIR)/base_unittests.dSYM/',
         ],
       },
     }],