replace demomaker with cloud-samples-data/video for video intelligenc…

…… [(#2162)](GoogleCloudPlatform/python-docs-samples#2162)

* replace demomaker with cloud-samples-data/video for video intelligence samples

* flake

samples/analyze/README.rst

@@ -85,8 +85,8 @@ To run this sample:
 
         python analyze.py labels gs://cloud-ml-sandbox/video/chicago.mp4
         python analyze.py labels_file resources/cat.mp4
-        python analyze.py shots gs://demomaker/gbikes_dinosaur.mp4
-        python analyze.py explicit_content gs://demomaker/gbikes_dinosaur.mp4
+        python analyze.py shots gs://cloud-samples-data/video/gbikes_dinosaur.mp4
+        python analyze.py explicit_content gs://cloud-samples-data/video/gbikes_dinosaur.mp4
 
     positional arguments:
       {labels,labels_file,explicit_content,shots}
@@ -157,4 +157,4 @@ to `browse the source`_ and  `report issues`_.
     https://github.com/GoogleCloudPlatform/google-cloud-python/issues
 
 
-.. _Google Cloud SDK: https://cloud.google.com/sdk/
+.. _Google Cloud SDK: https://cloud.google.com/sdk/

samples/analyze/beta_snippets_test.py

@@ -150,7 +150,7 @@ def test_track_objects():
 
 @pytest.mark.slow
 def test_track_objects_gcs():
-    in_file = 'gs://demomaker/cat.mp4'
+    in_file = 'gs://cloud-samples-data/video/cat.mp4'
     object_annotations = beta_snippets.track_objects_gcs(in_file)
 
     text_exists = False

samples/analyze/resources/README.md

@@ -9,7 +9,7 @@ Copy from Google Cloud Storage to this folder for testing video analysis
 of local files. For `cat.mp4` used in the usage example, run the following
 `gcloud` command.
 
-    gsutil cp gs://demomaker/cat.mp4 .
+    gsutil cp gs://cloud-samples-data/video/cat.mp4 .
 
 Now, when you run the following command, the video used for label detection
 will be passed from here: