Fix the stack script issue when symbolizing tombstones.

tools/mb/mb.py

Index: tools/mb/mb.py
diff --git a/tools/mb/mb.py b/tools/mb/mb.py
index 7335448bd5a15ddcc913a338ae361637743284e6..27229375e3ae4e4efdfbc285818592ebebcf6f30 100755
--- a/tools/mb/mb.py
+++ b/tools/mb/mb.py
@@ -886,6 +886,15 @@ class MetaBuildWrapper(object):
       command, extra_files = self.GetIsolateCommand(target, vals)
 
       runtime_deps = self.ReadFile(runtime_deps_path).splitlines()
+      if android:

[jbudorick, 2017/07/26 18:39:56]

I'm concerned about hacking this into mb.py rather than having it encoded in gn.
Andrew, I'm curious as to why you're in favor of this instead of changes on the
gn side.

[agrieve, 2017/07/26 19:03:57]

In GN, "runtime_deps" are the things required to run an executable. I don't
think unstripped .so files fall into this definition. This is more of a testing
/ swarming concern, so I actually think mb.py is a good spot for it.

+        unstripped_libs = []

[jbudorick, 2017/07/26 21:55:53]

one caveat: please add a TODO here with the bug number.

[BigBossZhiling, 2017/07/26 22:11:54]

Done.

+        for f in runtime_deps:
+          if f.endswith('.so'):
+            if os.path.isfile(self.PathJoin(self.ToAbsPath(build_dir),
+                                            'lib.unstripped',
+                                            os.path.basename(f))):
+              unstripped_libs.append('lib.unstripped/%s' % os.path.basename(f))
+        runtime_deps.extend(unstripped_libs)
 
       self.WriteIsolateFiles(build_dir, command, target, runtime_deps,
                              extra_files)