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

build/android/pylib/linker/test_runner.py

Index: build/android/pylib/linker/test_runner.py
diff --git a/build/android/pylib/linker/test_runner.py b/build/android/pylib/linker/test_runner.py
index f64cb257a593966fa6f86aa2f807cb4c59e10fea..0e55fdf2dc9bb121157ca391aae99ba90677aeab 100644
--- a/build/android/pylib/linker/test_runner.py
+++ b/build/android/pylib/linker/test_runner.py
@@ -72,7 +72,8 @@ class LinkerTestRunner(base_test_runner.BaseTestRunner):
     if not os.path.exists(apk_path):
       raise Exception('%s not found, please build it' % apk_path)
 
-    package_name = apk_helper.GetPackageName(apk_path)
+    package_name = apk_helper.GetPackageName(constants.ANDROID_SDK_TOOLS,
+                                             apk_path)
     self.adb.ManagedInstall(apk_path, package_name)
 
   #override