Add abliity to set textblob cache budget to GrContext

src/gpu/GrTest.cpp

Index: src/gpu/GrTest.cpp
diff --git a/src/gpu/GrTest.cpp b/src/gpu/GrTest.cpp
index ce98aa764ba11182a87f2911ea6a900c554b36ec..f77092ae7e96858a694d6e40a45556de853881d5 100644
--- a/src/gpu/GrTest.cpp
+++ b/src/gpu/GrTest.cpp
@@ -12,6 +12,7 @@
 #include "GrContextOptions.h"
 #include "GrGpuResourceCacheAccess.h"
 #include "GrResourceCache.h"
+#include "GrTextBlobCache.h"
 #include "SkString.h"
 
 void GrTestTarget::init(GrContext* ctx, GrDrawTarget* target) {
@@ -30,6 +31,10 @@ void GrContext::getTestTarget(GrTestTarget* tar) {
     tar->init(this, fDrawingMgr.fDrawTarget);
 }
 
+void GrContext::setTextBlobCacheLimit_ForTesting(size_t bytes) {
+    fTextBlobCache->setBudget(bytes);
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 void GrContext::purgeAllUnlockedResources() {