Reland of 'New run shell implementation for DeviceUtils'

build/android/pylib/instrumentation/test_runner.py

Index: build/android/pylib/instrumentation/test_runner.py
diff --git a/build/android/pylib/instrumentation/test_runner.py b/build/android/pylib/instrumentation/test_runner.py
index 0e6c168449d122f348663878aa6267401041d73c..821fec1f2a8c28e2d69d8621838149b904808c5b 100644
--- a/build/android/pylib/instrumentation/test_runner.py
+++ b/build/android/pylib/instrumentation/test_runner.py
@@ -358,8 +358,8 @@ class TestRunner(base_test_runner.BaseTestRunner):
 
     cmd = ['am', 'instrument', '-r']
     for k, v in self._GetInstrumentationArgs().iteritems():
-      cmd.extend(['-e', k, "'%s'" % v])
-    cmd.extend(['-e', 'class', "'%s'" % test])
+      cmd.extend(['-e', k, v])
+    cmd.extend(['-e', 'class', test])
     cmd.extend(['-w', instrumentation_path])
     return self.device.RunShellCommand(cmd, timeout=timeout, retries=0)