Rename button from "Close" to "Done" on bookmark bubble and content bubbles.

chrome/app/nibs/ContentBlockedPopups.xib

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-                                                                                                <string key="NSContents">^IDS_CLOSE</string>
+                                                                                                <string key="NSContents">^IDS_DONE</string>
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@@ skipping 502 matching lines @@
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