Add a presubmit script and pylintrc for content/test/gpu

content/test/gpu/gpu_tests/screenshot_sync_expectations.py

Index: content/test/gpu/gpu_tests/screenshot_sync_expectations.py
diff --git a/content/test/gpu/gpu_tests/screenshot_sync_expectations.py b/content/test/gpu/gpu_tests/screenshot_sync_expectations.py
index bacc9130530c4eaa7b83b1a4b6c70bc0a37ce6b5..44f8e06c93933c277d7ce2d39ee7a2e79bc893b3 100644
--- a/content/test/gpu/gpu_tests/screenshot_sync_expectations.py
+++ b/content/test/gpu/gpu_tests/screenshot_sync_expectations.py
@@ -2,10 +2,13 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from gpu_test_expectations import GpuTestExpectations
+from gpu_tests.gpu_test_expectations import GpuTestExpectations
 
 # See the GpuTestExpectations class for documentation.
 
 class ScreenshotSyncExpectations(GpuTestExpectations):
+  def __init__(self, *args, **kwargs):
+    super(ScreenshotSyncExpectations, self).__init__(*args, **kwargs)
+
   def SetExpectations(self):
     pass