Android: Replace symlinks with gradle filters

build/android/gradle/android.jinja

 {# Copyright 2016 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. #}
 {% macro expand_sourceset(variables, prefix) %}
 {% if variables is defined %}
         {{ prefix }} {
             manifest.srcFile "{{ variables.android_manifest }}"
             java.srcDirs = [
 {% for path in variables.java_dirs %}
                 "{{ path }}",
 {% endfor %}
             ]
+            java.filter.exclude(
+{% for path in variables.java_excludes %}
+                "{{ path }}",
+{% endfor %}
+            )
             jniLibs.srcDirs = [
 {% for path in variables.jni_libs %}
                 "{{ path }}",
 {% endfor %}
             ]
         }
 {% endif %}
 {% endmacro %}
 // Generated by //build/android/generate_gradle.py
 
@@ skipping 51 matching lines @@
                 || it.name.endsWith('ResValues')
 {% endif %}
                 || it.name.endsWith('Aidl')
                 || it.name.endsWith('Renderscript')
                 || it.name.endsWith('Shaders'))
     }
     tasksToDisable.each { Task task ->
       task.enabled = false
     }
 }