[Android] Work around pm path bug in L.

Dependent on https://codereview.chromium.org/787393003/

BUG=

Review URL: https://codereview.chromium.org/796503004

Cr-Commit-Position: refs/heads/master@{#308197}

build/android/pylib/device/device_utils.py

@@ -256,8 +256,14 @@ class DeviceUtils(object):
     Returns:
       Path to the apk on the device if it exists, None otherwise.
     """
+    # 'pm path' is liable to incorrectly exit with a nonzero number starting
+    # in Lollipop.
+    # TODO(jbudorick): Check if this is fixed as new Android versions are
+    # released to put an upper bound on this.
+    should_check_return = (self.build_version_sdk <
+                           constants.ANDROID_SDK_VERSION_CODES.LOLLIPOP)
     output = self.RunShellCommand(['pm', 'path', package], single_line=True,
-                                  check_return=True)
+                                  check_return=should_check_return)
     if not output:
       return None
     if not output.startswith('package:'):

build/android/pylib/device/device_utils_test.py

@@ -370,19 +370,25 @@ class DeviceUtilsGetExternalStoragePathTest(DeviceUtilsNewImplTest):
 class DeviceUtilsGetApplicationPathTest(DeviceUtilsNewImplTest):
 
   def testGetApplicationPath_exists(self):
-    with self.assertCall(self.call.adb.Shell('pm path android'),
-                         'package:/path/to/android.apk\n'):
+    with self.assertCalls(
+        (self.call.adb.Shell('getprop ro.build.version.sdk'), '19\n'),
+        (self.call.adb.Shell('pm path android'),
+         'package:/path/to/android.apk\n')):
       self.assertEquals('/path/to/android.apk',
                         self.device.GetApplicationPath('android'))
 
   def testGetApplicationPath_notExists(self):
-    with self.assertCall(self.call.adb.Shell('pm path not.installed.app'), ''):
+    with self.assertCalls(
+        (self.call.adb.Shell('getprop ro.build.version.sdk'), '19\n'),
+        (self.call.adb.Shell('pm path not.installed.app'), '')):
       self.assertEquals(None,
                         self.device.GetApplicationPath('not.installed.app'))
 
   def testGetApplicationPath_fails(self):
-    with self.assertCall(self.call.adb.Shell('pm path android'),
-        self.CommandError('ERROR. Is package manager running?\n')):
+    with self.assertCalls(
+        (self.call.adb.Shell('getprop ro.build.version.sdk'), '19\n'),
+        (self.call.adb.Shell('pm path android'),
+         self.CommandError('ERROR. Is package manager running?\n'))):
       with self.assertRaises(device_errors.CommandFailedError):
         self.device.GetApplicationPath('android')