Update mojo sdk to rev e7270700d671fa8e458b4d8c9e47f7bcfb65da0b

mojo/mojo_base.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.
 
 # Essential components (and their tests) that are needed to build
 # Chrome should be here.  Other components that are useful only in
 # Mojo land like mojo_shell should be in mojo.gyp.
 {
   'includes': [
     '../third_party/mojo/mojo_variables.gypi',
@@ skipping 102 matching lines @@
       'type': 'static_library',
       'dependencies': [
         'mojo_environment_chromium_impl',
         '../third_party/mojo/mojo_public.gyp:mojo_cpp_bindings',
       ],
       'sources': [
         'environment/environment.cc',
         # TODO(vtl): This is kind of ugly. (See TODO in logging.h.)
         "../third_party/mojo/src/mojo/public/cpp/environment/async_waiter.h",
         "../third_party/mojo/src/mojo/public/cpp/environment/lib/async_waiter.cc",
+        "../third_party/mojo/src/mojo/public/cpp/environment/lib/logging.cc",
+        "../third_party/mojo/src/mojo/public/cpp/environment/lib/scoped_task_tracking.cc",
+        "../third_party/mojo/src/mojo/public/cpp/environment/lib/scoped_task_tracking.cc",
         "../third_party/mojo/src/mojo/public/cpp/environment/logging.h",
-        "../third_party/mojo/src/mojo/public/cpp/environment/lib/logging.cc",
+        "../third_party/mojo/src/mojo/public/cpp/environment/task_tracker.h",
       ],
       'include_dirs': [
         '..',
         '../third_party/mojo/src',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '../third_party/mojo/src',
         ],
       },
@@ skipping 14 matching lines @@
         'mojo_common_lib',
         '<(mojo_system_for_component)',
       ],
       'sources': [
         'environment/default_async_waiter_impl.cc',
         'environment/default_async_waiter_impl.h',
         'environment/default_logger_impl.cc',
         'environment/default_logger_impl.h',
         'environment/default_run_loop_impl.cc',
         'environment/default_run_loop_impl.h',
+        'environment/default_task_tracker_impl.cc',
+        'environment/default_task_tracker_impl.h',
       ],
       'include_dirs': [
         '..',
         '../third_party/mojo/src',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '../third_party/mojo/src',
         ],
       },
@@ skipping 70 matching lines @@
           ],
           'variables': {
             'java_in_dir': '<(DEPTH)/mojo/android/system',
           },
           'includes': [ '../build/java.gypi' ],
         },
       ]
     }]
   ]
 }