wire up reduced atlas and zero textblob cache to test

src/gpu/GrTest.cpp

Index: src/gpu/GrTest.cpp
diff --git a/src/gpu/GrTest.cpp b/src/gpu/GrTest.cpp
index a2efb4829beee513b07ff84a46dcdc655e16aa50..aeae2f6624f9640f8660999a9d5c6690f36062ec 100644
--- a/src/gpu/GrTest.cpp
+++ b/src/gpu/GrTest.cpp
@@ -8,6 +8,7 @@
 
 #include "GrTest.h"
 
+#include "GrBatchAtlas.h"
 #include "GrBatchFontCache.h"
 #include "GrBufferedDrawTarget.h"
 #include "GrContextOptions.h"
@@ -16,6 +17,28 @@
 #include "GrTextBlobCache.h"
 #include "SkString.h"
 
+namespace GrTest {
+void SetupAlwaysEvictAtlas(GrContext* context) {
+    GrBatchAtlasConfig configs[3];
+    configs[kA8_GrMaskFormat].fWidth = 256;

[bsalomon, 2015/08/19 19:54:17]

comments about why these numbers?

+    configs[kA8_GrMaskFormat].fHeight = 256;
+    configs[kA8_GrMaskFormat].fPlotWidth = 256;
+    configs[kA8_GrMaskFormat].fPlotHeight = 256;
+
+    configs[kA565_GrMaskFormat].fWidth = 256;
+    configs[kA565_GrMaskFormat].fHeight = 256;
+    configs[kA565_GrMaskFormat].fPlotWidth = 256;
+    configs[kA565_GrMaskFormat].fPlotHeight = 256;
+
+    configs[kARGB_GrMaskFormat].fWidth = 256;
+    configs[kARGB_GrMaskFormat].fHeight = 256;
+    configs[kARGB_GrMaskFormat].fPlotWidth = 256;
+    configs[kARGB_GrMaskFormat].fPlotHeight = 256;
+
+    context->setTextContextAtlasSizes_ForTesting(configs);
+}
+};
+
 void GrTestTarget::init(GrContext* ctx, GrDrawTarget* target) {
     SkASSERT(!fContext);