Compile specific parts of the Android build with -O2.

base/android/jni_generator/jni_generator.gyp

 # Copyright (c) 2012 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.
 
 {
+  'target_defaults': {
+    'configurations': {
+      'Release': {
+        'conditions': [
+          ['OS=="android"', {
+            'cflags!': ['-Os'],
+            'cflags': ['-O2'],
+          }],
+        ],
+      },
+    },
+  },
   'targets': [
     {
       'target_name': 'jni_generator_py_tests',
       'type': 'none',
       'actions': [
         {
           'action_name': 'run_jni_generator_py_tests',
           'inputs': [
             'jni_generator.py',
             'jni_generator_tests.py',
@@ skipping 39 matching lines @@
         'jni_generator_py_tests',
         'jni_sample_header',
         'jni_sample_java',
       ],
       'sources': [
         'sample_for_tests.cc',
       ],
     },
   ],
 }