remove view matrix from context

src/effects/SkAlphaThresholdFilter.cpp

Index: src/effects/SkAlphaThresholdFilter.cpp
diff --git a/src/effects/SkAlphaThresholdFilter.cpp b/src/effects/SkAlphaThresholdFilter.cpp
index 317f6f09ecfaf2639e4be0290965f56a05c8781f..890cb71b516b53c8611e0e34067bb503fcabb0fd 100644
--- a/src/effects/SkAlphaThresholdFilter.cpp
+++ b/src/effects/SkAlphaThresholdFilter.cpp
@@ -290,15 +290,11 @@ bool SkAlphaThresholdFilterImpl::asFragmentProcessor(GrFragmentProcessor** fp,
             SkRegion::Iterator iter(fRegion);
             context->clear(NULL, 0x0, true, maskTexture->asRenderTarget());
 
-            SkMatrix old_matrix = context->getMatrix();
-            context->setMatrix(in_matrix);
-
             while (!iter.done()) {
                 SkRect rect = SkRect::Make(iter.rect());
-                context->drawRect(grPaint, rect);
+                context->drawRect(grPaint, in_matrix, rect);
                 iter.next();
             }
-            context->setMatrix(old_matrix);
         }
 
         *fp = AlphaThresholdEffect::Create(texture,