Refactoring Iterator used on SVGTests.
Refactoring Iterator used on SVGTests.

This CL is to clean up code. Change to for-each statement 
instead of for-iter.

BUG=N/A

Review URL: https://codereview.chromium.org/1149663002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@195731 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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