Restrict manage_render_test_goldens to golden images

Restricts manage_render_test_goldens.py to only uploading images that
are expected to be golden images. This is achieved by looking for
device/SDK pairs in the filename.

This is to prevent random images that happen to be in the directory from
being uploaded when they shouldn't be.

Bug: 1022632
Change-Id: Iead7b574f38b73a88994d2a6e9f61fdcd72b4ea5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1913571
Auto-Submit: Brian Sheedy <bsheedy@chromium.org>
Reviewed-by: Peter Conn <peconn@chromium.org>
Reviewed-by: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Commit-Queue: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#714769}

chrome/test/android/javatests/src/org/chromium/chrome/test/util/RENDER_TESTS.md

@@ -41,6 +41,11 @@ to the results_details/Render Results pages that you grabbed the new goldens
 from. This will help reviewers confirm that the changes to the goldens are
 acceptable.
 
+If you add a new device/SDK combination that you expect golden images for, be
+sure to add it to `ALLOWED_DEVICE_SDK_COMBINATIONS` in
+`//chrome/test/data/android/manage_render_test_goldens.py`, otherwise the
+goldens for it will not be uploaded.
+
 ### Failing locally
 
 Follow the steps in [*Running the tests locally*](#running-the-tests-locally)

chrome/test/data/android/manage_render_test_goldens.py

@@ -34,6 +34,16 @@ GOLDEN_DIRECTORIES = [
       'render_tests'),
 ]
 
+# This is to prevent accidentally uploading random, non-golden images that
+# might be in the directory.
+ALLOWED_DEVICE_SDK_COMBINATIONS = [
+  # From RenderTestRule.java
+  'Nexus_5-19',
+  # For VR tests.
+  'Pixel_XL-25',
+  'Pixel_XL-26',
+]
+
 
 # Assume a quad core if we can't get the actual core count.
 try:
@@ -63,9 +73,20 @@ def download(directory):
 
 
 def upload(directory):
+  def is_file_of_interest(f):
+    if not f.endswith('.png'):
+      return False
+    for combo in ALLOWED_DEVICE_SDK_COMBINATIONS:
+      if combo in f:
+        return True
+    return False
+
   files_to_upload = []
   for f in os.listdir(directory):
-    if f.endswith('.png'):
+    # Skip any files that we don't care about.
+    if not is_file_of_interest(f):
+      continue
+
     png_path = os.path.join(directory, f)
     # upload_to_google_storage will upload a file even if it already exists
     # in the bucket. As an optimization, hash locally and only pass files to
@@ -79,6 +100,7 @@ def upload(directory):
           if sha_file.read() == h.hexdigest():
             continue
     files_to_upload.append(png_path)
+
   if len(files_to_upload):
     subprocess.check_call([
         'upload_to_google_storage.py',