gtk: Fix RTL layout of page title for strong right-to-left characters.  When pango detects strong RTL characters in the layout, it switches the text direction.  For our uses of DrawStringInt, we've already handled the layout and don't want the direction switched.  This matches the behavior of Windows.
gtk: Fix RTL layout of page title for strong right-to-left characters.  When pango detects strong RTL characters in the layout, it switches the text direction.  For our uses of DrawStringInt, we've already handled the layout and don't want the direction switched.  This matches the behavior of Windows.

BUG=16970
TEST=Open a browser in a RTL language.  Navigate to google.com and notice that the tab title is right-aligned.  Open up the history page and notice that the title (in Hebrew) is right-aligned as well.
Review URL: http://codereview.chromium.org/155829

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@21145 0039d316-1c4b-4281-b951-d872f2087c98

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