Add chrome.bookmarks.export() and chrome.bookmarks.import()

https://code.google.com/p/chromium/codesearch#chromium/src/chrome/common/extensions/api/bookmarks.json&l=413
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=74884501
Create a class that applies suggested fixes to code and use that in the
RefasterJS debugging servlet.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=74896202
Add CreateDetails type to chrome_extensions.js, as of
https://code.google.com/p/chromium/codesearch#chromium/src/chrome/common/extensions/api/bookmarks.json&l=77
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=74901440