[Cronet] Use is_official_build=true for Cronet builds.

tools/mb/mb_config.pyl

 # Copyright 2015 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.
 
 # This is a .pyl, or "Python Literal", file. You can treat it just like a
 # .json file, with the following exceptions:
 # * all keys must be quoted (use single quotes, please);
 # * comments are allowed, using '#' syntax; and
 # * trailing commas are allowed.
 
@@ skipping 717 matching lines @@
 
     'android_cronet_debug_static_bot_arm_no_neon': [
       'android', 'cronet', 'debug_static_bot', 'arm_no_neon',
     ],
 
     'android_cronet_debug_static_bot_x86': [
       'android', 'cronet', 'debug_static_bot', 'x86',
     ],
 
     'android_cronet_release_bot_minimal_symbols_arm64': [
-      'android', 'cronet', 'release_bot', 'minimal_symbols', 'arm64',
+      'android', 'cronet', 'official_optimize', 'release_bot', 'minimal_symbols', 'arm64',

[jbudorick, 2017/05/16 22:00:42]

official_optimize and not official?

[mef, 2017/05/17 16:01:14]

Hrm, good question. What does is_chrome_branded=true do?
How would it affect base/ or /net?

     ],
 
     'android_cronet_release_bot_minimal_symbols_armv6': [
-      'android', 'cronet', 'release_bot', 'minimal_symbols', 'armv6',
+      'android', 'cronet', 'official_optimize', 'release_bot', 'minimal_symbols', 'armv6',
     ],
 
     'android_cronet_release_bot_minimal_symbols_arm_no_neon': [
-      'android', 'cronet', 'release_bot', 'minimal_symbols', 'arm_no_neon',
+      'android', 'cronet', 'official_optimize', 'release_bot', 'minimal_symbols', 'arm_no_neon',
     ],
 
     'android_cronet_release_bot_minimal_symbols_arm_no_neon_clang_asan': [
-      'android', 'cronet', 'release_bot', 'minimal_symbols', 'arm_no_neon', 'clang', 'asan',
+      'android', 'cronet', 'official_optimize', 'release_bot', 'minimal_symbols', 'arm_no_neon', 'clang', 'asan',
     ],
 
     'android_cronet_release_bot_minimal_symbols_mipsel': [
-      'android', 'cronet', 'release_bot', 'minimal_symbols', 'mipsel',
+      'android', 'cronet', 'official_optimize', 'release_bot', 'minimal_symbols', 'mipsel',
     ],
 
     'android_cronet_release_bot_minimal_symbols_x86': [
-      'android', 'cronet', 'release_bot', 'minimal_symbols', 'x86',
+      'android', 'cronet', 'official_optimize', 'release_bot', 'minimal_symbols', 'x86',
     ],
 
     'android_cronet_release_trybot_arm_no_neon': [
       'android', 'cronet', 'release_trybot', 'arm_no_neon',
     ],
 
     'android_debug_bot': [
       'android', 'debug_bot',
     ],
 
@@ skipping 1116 matching lines @@
 
     'x64': {
       'gn_args': 'target_cpu="x64"',
     },
 
     'x86': {
       'gn_args': 'target_cpu="x86"',
     },
   },
 }