Add abliity to set textblob cache budget to GrContext

src/gpu/GrContext.cpp

Index: src/gpu/GrContext.cpp
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 9f83fed191cd72518b2e1d69a275b3605a9ad46f..e80cd61273d12b8ce4ec0bb46d1ed3f782c08b0a 100755
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -751,6 +751,10 @@ void GrContext::setResourceCacheLimits(int maxTextures, size_t maxTextureBytes)
     fResourceCache->setLimits(maxTextures, maxTextureBytes);
 }
 
+void GrContext::setTextBlobCacheLimit(size_t bytes) {
+    fTextBlobCache->setBudget(bytes);
+}
+
 //////////////////////////////////////////////////////////////////////////////
 
 void GrContext::addGpuTraceMarker(const GrGpuTraceMarker* marker) {