Remove unnecessary variable in Outline
Half-working adjustable outline font size

Font size and item height are adjusted fine, but all items initially appear as top-level ones (i.e. class members don't appear as such), and some items are displayed incorrectly (e.g. just the class name appears, but no members; moving input cursor into a member in the code inserts that member into the outline; moving to a different one replaces the just inserted previous item; etc.).
Missed these changes in recent pull request.

* I apparently forgot to "Ctrl-S" in the editor before running git commit.
Fix pubspec.yaml syntax around '-polymer --csp' flag
fix a timing issue with dart analysis
review comments
Add json validator component, to be used by upcoming manifest.json validator.
Add json validator tests.
Add custom validator for "manifest.json" files.
Code cleanup.
move the run button
disabled a warning at startup
add pub/bower context menu to packages
address comments
upgrade tavern to fix issue with pub get
Rename "ErrorSink" to "ErrorCollector"
Rename "emitMessage" to "addMessage".
Address code review feedback.
Toggle spark-menu-button only if focus went outside of the menu.
Merge pull request #3239 from dart-lang/fix-blur-hover

Toggle spark-menu-button only if focus went outside of the menu.