Don't fail when the flakiness dashboard uploader can't be imported.

build/android/pylib/utils/flakiness_dashboard_results_uploader.py

Index: build/android/pylib/utils/flakiness_dashboard_results_uploader.py
diff --git a/build/android/pylib/utils/flakiness_dashboard_results_uploader.py b/build/android/pylib/utils/flakiness_dashboard_results_uploader.py
index 4dd846cb6362470301ae7572997b54e269fe8a71..f9dc6880247e8f3f19ccb252ea3b7af1835498ff 100644
--- a/build/android/pylib/utils/flakiness_dashboard_results_uploader.py
+++ b/build/android/pylib/utils/flakiness_dashboard_results_uploader.py
@@ -11,10 +11,19 @@ import subprocess
 import sys
 import tempfile
 
+# Include path when ran from a Chromium checkout.
 sys.path.append(
-    os.path.abspath(os.path.join(os.path.dirname(__file__ ),
+    os.path.abspath(os.path.join(os.path.dirname(__file__),
                                  os.pardir, os.pardir, os.pardir, os.pardir,
                                  'third_party', 'WebKit', 'Tools', 'Scripts')))
+
+# Include path when ran from a WebKit checkout.
+sys.path.append(
+    os.path.abspath(os.path.join(os.path.dirname(__file__),
+                                 os.pardir, os.pardir, os.pardir, os.pardir,
+                                 os.pardir, os.pardir, os.pardir,
+                                 'Tools', 'Scripts')))
+
 from webkitpy.common.system import executive, filesystem
 from webkitpy.layout_tests.layout_package import json_results_generator