Add a guard for a Skia bug fix so it can be enabled atomically w/in Chrome

The bug fix will require some cc unit test rebaselines and some layout rebaselines.
Here is the Skia CL in question:

https://skia-review.googlesource.com/c/skia/+/233556/ (Fix exactify for explicit resource allocation (take 2))

Bug: b/138674523
Change-Id: Icc4507129198dbf327d0dff4a2e3fe04b8fd91a4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1745440
Commit-Queue: Robert Phillips <robertphillips@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Cr-Commit-Position: refs/heads/master@{#685551}

skia/config/SkUserConfig.h

@@ -139,6 +139,12 @@
 // converted to type3 when producing PDFs, and reduces build size.
 #define SK_PDF_DO_NOT_SUPPORT_TYPE_1_FONTS
 
+// Please see: b/138674523. Turning on explicit resource allocation prevented
+// reusing textures in some cases (esp. blur image filters using
+// SkImage::makeWithFilter). Temporarily keep this bug (via this define) because
+// the fix needs to be turned on atomically with some cc unit test rebaselines.
+#define SK_CRIPPLE_TEXTURE_REUSE
+
 #ifdef SK_DEBUG
 #define SK_REF_CNT_MIXIN_INCLUDE "skia/config/sk_ref_cnt_ext_debug.h"
 #else