Enable libc++ on Android

tools/android/run_pie/run_pie.gyp

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'targets': [
     {
       'target_name': 'run_pie-unstripped',
       'type': 'executable',
       'sources': [
         'run_pie.c',
       ],
       # See crbug.com/373219. This is the only Android executable which must be
       # non PIE.
       'cflags!': [
         '-fPIE',
       ],
       'ldflags!': [
         '-pie',
       ],
       # Don't inherit unneeded dependencies on stlport.so, so the binary remains

[Nico, 2015/02/06 17:17:19]

"on libc++"

I assume this file isn't used in the webview build.

[jdduke (slow), 2015/02/06 17:38:38]

Done.
Right, I believe it's only used for testing.

       # self-contained also in component=shared_library builds.
       'libraries!': [
-        '-l<(android_stlport_library)',
+        '-l<(android_libcpp_library)',
       ],
     },
     {
       'target_name': 'run_pie',
       'type': 'none',
       'dependencies': [
         'run_pie-unstripped',
       ],
       'actions': [
         {
           'action_name': 'strip_run_pie',
           'inputs': ['<(PRODUCT_DIR)/run_pie-unstripped'],
           'outputs': ['<(PRODUCT_DIR)/run_pie'],
           'action': [
             '<(android_strip)',
             '--strip-unneeded',
             '<@(_inputs)',
             '-o',
             '<@(_outputs)',
           ],
         },
       ],
     },
   ],
 }