Backout 111b3d84c479 (bug 885962) for Android bustage on a CLOSED TREE

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rename : mobile/android/base/resources/drawable-mdpi/lock_identified.png => mobile/android/base/resources/drawable-mdpi/site_security_identified.png
rename : mobile/android/base/resources/drawable-mdpi/lock_verified.png => mobile/android/base/resources/drawable-mdpi/site_security_verified.png
extra : amend_source : aff11fe057de12ee7ec2fff8814a78b415d6554a