Gradient shaders: make fPtsToUnit const, pre-cache getType().

This prevents races when calling fPtsToUnit.getType() from multiple threads.

This introduces a small amount of redundant code in SkTwoPointRadialGradient,
but it's probably optimized together into no extra run-time work.

BUG=437511

Review URL: https://codereview.chromium.org/793763003

1 files changed, 0 insertions, 2 deletions

diff --git a/src/effects/gradients/SkTwoPointRadialGradient.h b/src/effects/gradients/SkTwoPointRadialGradient.h
index da9c5fc029..dff2479fe7 100644
--- a/src/effects/gradients/SkTwoPointRadialGradient.h
+++ b/src/effects/gradients/SkTwoPointRadialGradient.h
@@ -56,8 +56,6 @@ private:
     SkPoint fDiff;
     SkScalar fStartRadius, fDiffRadius, fSr2D2, fA, fOneOverTwoA;
 
-    void init();
-
     friend class SkGradientShader;
     typedef SkGradientShaderBase INHERITED;
 };