Extended the click hit-box of the Wrench/AppMenu button to the edge of the window when maximized, as per Fitt's Law.
Extended the click hit-box of the Wrench/AppMenu button to the edge of the window when maximized, as per Fitt's Law.

BUG=54291
TEST=Ensure that if the Chrome window is maximized, if the mouse cursor is to the right of the Wrench button (all the way against the edge of the screen) it can still click on the button (with all the correct visual cues).

Review URL: http://codereview.chromium.org/6250161

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@74456 0039d316-1c4b-4281-b951-d872f2087c98

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