telemetry: handle tests that are not supported on a platform.

tools/telemetry/telemetry/test.py

Index: tools/telemetry/telemetry/test.py
diff --git a/tools/telemetry/telemetry/test.py b/tools/telemetry/telemetry/test.py
index 3559d9c8e061b5e9cf8141ce3f7299521d55dfcd..b3cc4d9f03f5cd200b46b3713e5116384c6360d3 100644
--- a/tools/telemetry/telemetry/test.py
+++ b/tools/telemetry/telemetry/test.py
@@ -17,6 +17,7 @@ from telemetry.page import page_runner
 from telemetry.page import cloud_storage
 from telemetry.page import page_set
 from telemetry.page import page_test
+from telemetry.page import page_test_results
 from telemetry.page import test_expectations
 
 
@@ -78,7 +79,12 @@ class Test(command_line.Command):
 
     self._DownloadGeneratedProfileArchive(args)
 
-    results = page_runner.Run(test, ps, expectations, args)
+    results = page_test_results.PageTestResults()
+    try:
+      results = page_runner.Run(test, ps, expectations, args)
+    except page_test.TestNotSupportedOnPlatformFailure as failure:
+      logging.warning(str(failure))
+
     results.PrintSummary()
     return len(results.failures) + len(results.errors)