Update usage of Proguard in clank after moving Proguard to third_party.

build/java.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 Java in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my-package_java',
@@ skipping 186 matching lines @@
           ],
         },
       ],
     }],
     ['proguard_preprocess == 1', {
       'actions': [
         {
           'action_name': 'proguard_<(_target_name)',
           'message': 'Proguard preprocessing <(_target_name) jar',
           'inputs': [
-            '<(android_sdk_root)/tools/proguard/lib/proguard.jar',
+            '<(DEPTH)/third_party/proguard/lib/proguard.jar',
             '<(DEPTH)/build/android/gyp/util/build_utils.py',
             '<(DEPTH)/build/android/gyp/proguard.py',
             '<(javac_jar_path)',
             '<(proguard_config)',
           ],
           'outputs': [
             '<(jar_path)',
           ],
           'action': [
             'python', '<(DEPTH)/build/android/gyp/proguard.py',
-            '--proguard-path=<(android_sdk_root)/tools/proguard/lib/proguard.jar',
+            '--proguard-path=<(DEPTH)/third_party/proguard/lib/proguard.jar',
             '--input-path=<(javac_jar_path)',
             '--output-path=<(jar_path)',
             '--proguard-config=<(proguard_config)',
             '--classpath=<(android_sdk_jar) >(input_jars_paths)',
           ]
         },
       ],
     }],
     ['run_findbugs == 1', {
       'actions': [
@@ skipping 152 matching lines @@
             'dex_no_locals': 1,
           }],
         ],
         'dex_input_paths': [ '<(jar_final_path)' ],
         'output_path': '<(dex_path)',
       },
       'includes': [ 'android/dex_action.gypi' ],
     },
   ],
 }