tree ffd4472adf43e7f9536018fdb03f253325baf858
parent bb963e2585efb9690906b5963fcf516ddfb1d432
author jvanverth@google.com <jvanverth@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> 1362405398 +0000
committer jvanverth@google.com <jvanverth@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> 1362405398 +0000

Change random number generator for 'tests' to SkMWCRandom. Also removes some 
unused headers and fixes a couple of bugs exposed by changing the random 
number generator:

First, the function SkMatrix::getMaxStretch() had an error where it was testing
the square of a number against near-zero. This led to it occasionally taking a
cheaper but imprecise path for computing the eigenvalues of the matrix. It's 
been replaced with a check against the square of SK_ScalarNearlyZero. 

The second case was a failure in ClipStackTest, where it hit the rare case of 
a practically empty clip stack (it has a single Union) and we set a tight 
bounds. The bounds rect doesn't get set by GrReducedClip::ReduceClipStack() in 
this case, so when it clips the reduced stack it's clipping against garbage, 
and the resulting regions don't match. The solution is to initialize the 
tightBounds rect.


git-svn-id: http://skia.googlecode.com/svn/trunk@7952 2bbb7eff-a529-9590-31e7-b0007b416f81