[ChromeDriver] Platform specific commit positions for run_all_tests

This is intended as a temporary fix since the current commit
position for version 62 points to a revision that is actually
listed as 63.

Bug: 
Change-Id: I9aa73ac1e9f9712b84893c08e7d8c07d333df3ab
Reviewed-on: https://chromium-review.googlesource.com/806762Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: Jonathon Kereliuk <kereliuk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#521491}

chrome/test/chromedriver/test/run_all_tests.py

@@ -199,10 +199,25 @@ def main():
 
       # TODO(samuong): speculative fix for crbug.com/611886
       os.environ['CHROME_DEVEL_SANDBOX'] = '/opt/chromium/chrome_sandbox'
-    else:
+
+    # Linux64 build numbers
+    elif util.isLinux():
+      versions['63'] = '508578'
+      versions['62'] = '499100'
+      versions['61'] = '488595'
+
+    # Mac build numbers
+    elif util.isMac():
       versions['63'] = '508578'
-      versions['62'] = '499119'
+      versions['62'] = '499098'
       versions['61'] = '488595'
+
+    # Windows build numbers
+    elif util.isWindows():
+      versions['63'] = '508578'
+      versions['62'] = '499101'
+      versions['61'] = '488595'
+
     code = 0
     for version, revision in versions.iteritems():
       if options.chrome_version and version != options.chrome_version: