refactor parsing of change descriptions, fix TBR=

tests/gclient_utils_test.py

Index: tests/gclient_utils_test.py
diff --git a/tests/gclient_utils_test.py b/tests/gclient_utils_test.py
index 8027675b0e8b21e91c950b146f09354c0c08aa05..ccbff65502663e1f259cddde5dd12211cfe8f5bb 100755
--- a/tests/gclient_utils_test.py
+++ b/tests/gclient_utils_test.py
@@ -28,13 +28,13 @@ class GclientUtilsUnittest(GclientUtilBase):
         'CheckCall', 'CheckCallError', 'CheckCallAndFilter',
         'CheckCallAndFilterAndHeader', 'Error', 'ExecutionQueue', 'FileRead',
         'FileWrite', 'FindFileUpwards', 'FindGclientRoot',
-        'GetGClientRootAndEntries', 'GetNamedNodeText', 'MakeFileAutoFlush',
-        'GetNodeNamedAttributeText', 'MakeFileAnnotated', 'PathDifference',
-        'ParseXML', 'Popen',
+        'GetGClientRootAndEntries', 'GetEditor', 'GetNamedNodeText',
+        'MakeFileAutoFlush', 'GetNodeNamedAttributeText', 'MakeFileAnnotated',
+        'PathDifference', 'ParseXML', 'Popen',
         'PrintableObject', 'RemoveDirectory', 'SoftClone', 'SplitUrlRevision',
-        'SyntaxErrorToError', 'WorkItem',
+        'SyntaxErrorToError', 'UserEdit', 'WorkItem',
         'errno', 'hack_subprocess', 'logging', 'os', 'Queue', 're', 'rmtree',
-        'stat', 'subprocess', 'sys','threading', 'time', 'xml',
+        'stat', 'subprocess', 'sys', 'tempfile', 'threading', 'time', 'xml',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(gclient_utils, members)