Fix proguard enabled condition in dexing step. By definition proguard_enabled flag should use "true…

build/java_apk.gypi

 # 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.
 
 # This file is meant to be included into a target to provide a rule
 # to build Android APKs in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my_package_apk',
@@ skipping 290 matching lines @@
         # (e.g. if a Java file is removed), the command will be re-run.
         # TODO(newt): remove this once crbug.com/177552 is fixed in ninja.
         '-DTHIS_IS_IGNORED=>!(echo \'>(_inputs)\' | md5sum)',
       ],
     },
     {
       'action_name': 'dex_<(_target_name)',
       'message': 'Dexing <(_target_name) jar',
       'variables': {
         'conditions': [
-          ['proguard_enabled==1', {
+          ['proguard_enabled=="true" and CONFIGURATION_NAME=="Release"', {
             'dex_inputs': [ '<(obfuscated_jar_path)' ],
             'dex_generated_inputs': [],
           }, {
             'dex_inputs': [
               '>@(library_dexed_jars_paths)',
             ],
             'dex_generated_inputs': [
               '<(classes_dir)',
             ],
           }],
@@ skipping 67 matching lines @@
 
         # Add list of inputs to the command line, so if inputs change
         # (e.g. if a Java file is removed), the command will be re-run.
         # TODO(newt): remove this once crbug.com/177552 is fixed in ninja.
         '-DTHIS_IS_IGNORED=>!(echo \'>(_inputs)\' | md5sum)',
 
       ]
     },
   ],
 }