android: Don't require aapt to be on the path during builds and tests.

build/android/gyp/create_device_library_links.py

Index: build/android/gyp/create_device_library_links.py
diff --git a/build/android/gyp/create_device_library_links.py b/build/android/gyp/create_device_library_links.py
index dcb6e306367dd2de9e6087c225024ca1aa1ee8e7..77187c3b433354e9ae30f4360d8a577ebbdd8614 100755
--- a/build/android/gyp/create_device_library_links.py
+++ b/build/android/gyp/create_device_library_links.py
@@ -59,7 +59,8 @@ def TriggerSymlinkScript(options):
   if not device:
     return
 
-  apk_package = apk_helper.GetPackageName(options.apk)
+  apk_package = apk_helper.GetPackageName(options.android_sdk_tools,
+                                          options.apk_path)
   apk_libraries_dir = '/data/data/%s/lib' % apk_package
 
   device_dir = os.path.dirname(options.script_device_path)
@@ -82,6 +83,8 @@ def TriggerSymlinkScript(options):
 
 def main(argv):
   parser = optparse.OptionParser()
+  parser.add_option('--android-sdk-tools',
+      help='path to the Android SDK build tools folder')
   parser.add_option('--apk', help='Path to the apk.')
   parser.add_option('--script-host-path',
       help='Path on the host for the symlink script.')