Chris Craik 6097eca721 Expose color filter mutate methods
Bug: 36025103
Test: cts-tradefed run singleCommand cts-dev --module CtsGraphicsTestCases

Now, similar to Shaders, we defer native creation until Paint is being
used, and ensure that we have an up to date filter when drawing.

Also implements ColorMatrix#equals to behave like Matrix#equals.

Change-Id: I5f74addd97f5662800802e6f660fead58d518725
2017-03-16 15:45:43 -07:00
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