From 41511604ae0aadddef0c4defeb73dcbe4408ff66 Mon Sep 17 00:00:00 2001
From: Robert Phillips <robertphillips@google.com>
Date: Thu, 2 Feb 2017 10:06:18 -0500
Subject: [PATCH] Force instantiation in GaussianBlur to hopefully prevent (and
 diagnose) Chrome crash

BUG=687174

Change-Id: Ieb9930feca9abad9220a1a099e7dd247e6eff70e
Reviewed-on: https://skia-review.googlesource.com/7920
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
---
 src/core/SkGpuBlurUtils.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/core/SkGpuBlurUtils.cpp b/src/core/SkGpuBlurUtils.cpp
index c14a55c111..c052c50dcb 100644
--- a/src/core/SkGpuBlurUtils.cpp
+++ b/src/core/SkGpuBlurUtils.cpp
@@ -194,6 +194,17 @@ sk_sp<GrRenderTargetContext> GaussianBlur(GrContext* context,
                                           float sigmaY,
                                           SkBackingFit fit) {
     SkASSERT(context);
+
+    {
+        // Chrome is crashing with proxies when they need to be instantiated.
+        // Force an instantiation here (where, in olden days, we used to require a GrTexture)
+        // to see if the input is already un-instantiable.
+        GrTexture* temp = srcProxy->instantiate(context->textureProvider());
+        if (!temp) {
+            return nullptr;
+        }
+    }
+
     SkIRect clearRect;
     int scaleFactorX, radiusX;
     int scaleFactorY, radiusY;