Turning on optimizations for chromium code

build/android/gyp/util/proguard_util.py

 # 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.
 
 import os
 import re
 from util import build_utils
 
 
 class _ProguardOutputFilter(object):
@@ skipping 27 matching lines @@
     self._proguard_jar_path = proguard_jar
     self._tested_apk_info_path = None
     self._tested_apk_info = None
     self._mapping = None
     self._libraries = None
     self._injars = None
     self._configs = None
     self._outjar = None
     self._cmd = None
     self._verbose = False
+    self._disabled_optimizations = []
 
   def outjar(self, path):
     assert self._cmd is None
     assert self._outjar is None
     self._outjar = path
 
   def tested_apk_info(self, tested_apk_info_path):
     assert self._cmd is None
     assert self._tested_apk_info is None
     self._tested_apk_info_path = tested_apk_info_path
@@ skipping 22 matching lines @@
     assert self._cmd is None
     assert self._configs is None
     for p in paths:
       assert os.path.exists(p), p
     self._configs = paths
 
   def verbose(self, verbose):
     assert self._cmd is None
     self._verbose = verbose
 
+  def disable_optimizations(self, optimizations):
+    assert self._cmd is None
+    self._disabled_optimizations += optimizations
+
   def build(self):
     if self._cmd:
       return self._cmd
     assert self._injars is not None
     assert self._outjar is not None
     assert self._configs is not None
     cmd = [
       'java', '-jar', self._proguard_jar_path,
       '-forceprocessing',
     ]
@@ skipping 16 matching lines @@
     if self._mapping:
       cmd += [
         '-applymapping', self._mapping,
       ]
 
     if self._libraries:
       cmd += [
         '-libraryjars', ':'.join(self._libraries),
       ]
 
+    for optimization in self._disabled_optimizations:
+      cmd += [
+          '-optimizations', '!' + optimization,

[agrieve, 2016/07/07 15:30:06]

nit: put this all oneline:

cmd += [ '-optimizations', '!' + optimization ]

+      ]
+
     cmd += [
       '-injars', ':'.join(self._injars)
     ]
 
     for config_file in self._configs:
       cmd += ['-include', config_file]
 
     # The output jar must be specified after inputs.
     cmd += [
       '-outjars', self._outjar,
@@ skipping 43 matching lines @@
                             stderr_filter=stderr_filter)
 
     this_info = {
       'inputs': self._injars,
       'configs': self._configs,
       'mapping': self._outjar + '.mapping',
     }
 
     build_utils.WriteJson(this_info, self._outjar + '.info')