Bug: 18108776
Change-Id: I43feb25d79f89276d44462ba71788a14c4583277

This CL fixes the following compiler warnings.

- Indirect access to static member
- Access to a non-accessible member of an enclosing type
- Parameter assignment
- Method can be static
- Local variable declaration hides another field or variable
- Value of local variable is not used
- Unused import
- Unused private member
- Unnecessary 'else' statement
- Unnecessary declaration of throw exception
- Redundant type arguments
- Missing '@Override' annotation
- Unused '@SuppressWarning' annotations

Bug: 18003991
Change-Id: Icfebe753e53a2cc621848f769d6a3d7ce501ebc7

Bug: 11447084
Change-Id: I5bd558b9dd85d1505aa918f44e8ac3e52ec42d97

I don't know what or when this flag is set, but it's only bad
news. Luckily, we can just remove it.

Bug: 12119393
Change-Id: I2952138c8ce517535b91e0fe25d2cf4960e02862

Followup to If4e44eca3cdc5bb02cf2e0c8c44ecd4bf27fae57

bug: 10622489
Change-Id: If98b2c75725f8692f0c2b41c33e448086404479b