Add Findit service account to Presubmit whitelist.

Bug: 824461
Change-Id: I5926edbc1263d5dbd8d46eee7123e21be484e20a
Reviewed-on: https://chromium-review.googlesource.com/974062Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Shuotao Gao <stgao@chromium.org>
Commit-Queue: Chan Li <chanli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544838}

PRESUBMIT.py

@@ -556,9 +556,10 @@ _ALL_PYDEPS_FILES = _ANDROID_SPECIFIC_PYDEPS_FILES + _GENERIC_PYDEPS_FILES
 
 # Bypass the AUTHORS check for these accounts.
 _KNOWN_ROBOTS = set(
-  '%s-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com' % s
-  for s in ('afdo', 'angle', 'catapult', 'chromite', 'depot-tools',
-            'fuchsia-sdk', 'nacl', 'pdfium', 'skia', 'src-internal', 'webrtc'))
+    '%s-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com' % s
+    for s in ('afdo', 'angle', 'catapult', 'chromite', 'depot-tools',
+              'fuchsia-sdk', 'nacl', 'pdfium', 'skia', 'src-internal', 'webrtc')
+  ) | set('%s@appspot.gserviceaccount.com' % s for s in ('findit-for-me',))
 
 
 def _CheckNoProductionCodeUsingTestOnlyFunctions(input_api, output_api):