From 152f524fd325b7776b01f84afbfe2fa071648a05 Mon Sep 17 00:00:00 2001
From: robertphillips <robertphillips@google.com>
Date: Wed, 7 Jan 2015 09:01:12 -0800
Subject: It is dangerous to ignore SkRect::intersect's return value

Review URL: https://codereview.chromium.org/833943002
---
 src/effects/SkBlurMaskFilter.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/effects/SkBlurMaskFilter.cpp')

diff --git a/src/effects/SkBlurMaskFilter.cpp b/src/effects/SkBlurMaskFilter.cpp
index aa576697e3..97ae436367 100644
--- a/src/effects/SkBlurMaskFilter.cpp
+++ b/src/effects/SkBlurMaskFilter.cpp
@@ -1184,7 +1184,9 @@ bool SkBlurMaskFilterImpl::canFilterMaskGPU(const SkRect& srcBounds,
     // Outset srcRect and clipRect by 3 * sigma, to compute affected blur area.
     srcRect.outset(sigma3, sigma3);
     clipRect.outset(sigma3, sigma3);
-    srcRect.intersect(clipRect);
+    if (!srcRect.intersect(clipRect)) {
+        srcRect.setEmpty();
+    }
     *maskRect = srcRect;
     return true;
 }
-- 
cgit v1.2.3