Adding bulk plot reffer to cached textblobs

src/gpu/GrAtlasTextContext.cpp

Index: src/gpu/GrAtlasTextContext.cpp
diff --git a/src/gpu/GrAtlasTextContext.cpp b/src/gpu/GrAtlasTextContext.cpp
index d9807abafd9dcff92faebdd3a5714db47f95c0d4..fbfb17c02a57f3c019e060d6f18977a2918cef54 100644
--- a/src/gpu/GrAtlasTextContext.cpp
+++ b/src/gpu/GrAtlasTextContext.cpp
@@ -815,6 +815,7 @@ public:
                 GrBatchTextStrike* strike = NULL;
                 bool brokenRun = false;
                 if (regenerateTextureCoords) {
+                    info.fBulkTokenReffer.reset();
                     desc = run.fDescriptor.getDesc();
                     cache = SkGlyphCache::DetachCache(run.fTypeface, desc);
                     scaler = GrTextContext::GetGrFontScaler(cache);
@@ -841,7 +842,8 @@ public:
                             SkASSERT(success);
                         }
 
-                        fFontCache->setGlyphRefToken(glyph, batchTarget->currentToken());
+                        fFontCache->setGlyphRefToken(&info.fBulkTokenReffer,
+                                                     glyph, batchTarget->currentToken());
 
                         // Texture coords are the last vertex attribute so we get a pointer to the
                         // first one and then map with stride in regenerateTextureCoords
@@ -870,6 +872,9 @@ public:
                 }
             } else {
                 instancesToFlush += glyphCount;
+
+                // Ref all of the plots in the atlas to prevent eviction
+                fFontCache->setRefTokenBulk(info.fBulkTokenReffer, fMaskFormat);
             }
 
             // now copy all vertices