Add repro GM for GPU clipped-AA vs. non-AA drawRect discrepancy

src/core/SkClipStack.cpp

Index: src/core/SkClipStack.cpp
diff --git a/src/core/SkClipStack.cpp b/src/core/SkClipStack.cpp
index 515596a9693451f3a8bc05b932405ef20ac975b4..7d530dcc5e07179c8f31a3375fe3231120ed26b6 100644
--- a/src/core/SkClipStack.cpp
+++ b/src/core/SkClipStack.cpp
@@ -418,17 +418,17 @@ void SkClipStack::Element::updateBoundAndGenID(const Element* prior) {
             break;
     }
 
-    if (!fDoAA) {
-        // Here we mimic a non-anti-aliased scanline system. If there is
-        // no anti-aliasing we can integerize the bounding box to exclude
-        // fractional parts that won't be rendered.
-        // Note: the left edge is handled slightly differently below. We
-        // are a bit more generous in the rounding since we don't want to
-        // risk missing the left pixels when fLeft is very close to .5
-        fFiniteBound.set(SkScalarFloorToScalar(fFiniteBound.fLeft+0.45f),
-                         SkScalarRoundToScalar(fFiniteBound.fTop),
-                         SkScalarRoundToScalar(fFiniteBound.fRight),
-                         SkScalarRoundToScalar(fFiniteBound.fBottom));
+    if (!fDoAA) {
+        // Here we mimic a non-anti-aliased scanline system. If there is
+        // no anti-aliasing we can integerize the bounding box to exclude
+        // fractional parts that won't be rendered.
+        // Note: the left edge is handled slightly differently below. We
+        // are a bit more generous in the rounding since we don't want to
+        // risk missing the left pixels when fLeft is very close to .5
+        fFiniteBound.set(SkScalarFloorToScalar(fFiniteBound.fLeft+0.45f),
+                         SkScalarRoundToScalar(fFiniteBound.fTop),
+                         SkScalarRoundToScalar(fFiniteBound.fRight),
+                         SkScalarRoundToScalar(fFiniteBound.fBottom));
     }
 
     // Now determine the previous Element's bound information taking into