[Android] Specify dependency files for instrumentation tests.

build/android/pylib/base/base_test_runner.py

Index: build/android/pylib/base/base_test_runner.py
diff --git a/build/android/pylib/base/base_test_runner.py b/build/android/pylib/base/base_test_runner.py
index c188b3e9a163051b550a6b888f3448b8c81725e7..19bf4f3420fbafff18179df9a6a733cb43035b22 100644
--- a/build/android/pylib/base/base_test_runner.py
+++ b/build/android/pylib/base/base_test_runner.py
@@ -77,9 +77,14 @@ class BaseTestRunner(object):
     """
     raise NotImplementedError
 
+  def PushDependencies(self):
+    """Push all dependencies to device once before all tests are run."""
+    pass
+
   def SetUp(self):
     """Run once before all tests are run."""
     Forwarder.KillDevice(self.adb, self.tool)
+    self.PushDependencies()
 
   def TearDown(self):
     """Run once after all tests are run."""