Minor refactoring of code in TextIterator
Minor refactoring of code in TextIterator

This patch avoid unneccessary function calls, by using the already avaiable member variable.
No new test cases are needed

Change-Id: If7ac8eecc4e8fbfa0a4887deec4bc97a4826da48

BUG=NONE

Review URL: https://codereview.chromium.org/107103005

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@163994 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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