Have SkVarAlloc::alloc() use sk_malloc_throw.

src/gpu/GrBatchFontCache.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrBatchFontCache.h"
 #include "GrContext.h"
 #include "GrGpu.h"
@@ skipping 160 matching lines @@
         if (!scaler->getPackedGlyphDFBounds(skGlyph, &bounds)) {
             return nullptr;
         }
     } else {
         if (!scaler->getPackedGlyphBounds(skGlyph, &bounds)) {
             return nullptr;
         }
     }
     GrMaskFormat format = scaler->getPackedGlyphMaskFormat(skGlyph);
 
-    GrGlyph* glyph = (GrGlyph*)fPool.alloc(sizeof(GrGlyph), SK_MALLOC_THROW);
+    GrGlyph* glyph = (GrGlyph*)fPool.alloc(sizeof(GrGlyph));
     glyph->init(packed, bounds, format);
     fCache.add(glyph);
     return glyph;
 }
 
 void GrBatchTextStrike::removeID(GrBatchAtlas::AtlasID id) {
     SkTDynamicHash<GrGlyph, GrGlyph::PackedID>::Iter iter(&fCache);
     while (!iter.done()) {
         if (id == (*iter).fID) {
             (*iter).fID = GrBatchAtlas::kInvalidAtlasID;
@@ skipping 33 matching lines @@
 
     bool success = fBatchFontCache->addToAtlas(this, &glyph->fID, target, expectedMaskFormat,
                                                glyph->width(), glyph->height(),
                                                storage.get(), &glyph->fAtlasLocation);
     if (success) {
         SkASSERT(GrBatchAtlas::kInvalidAtlasID != glyph->fID);
         fAtlasedGlyphs++;
     }
     return success;
 }