Fix for Ubuntu compile warning

src/core/SkMaskCache.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkMaskCache.h"
 
 #define CHECK_LOCAL(localCache, localName, globalName, ...) \
@@ skipping 92 matching lines @@
 public:
     RectsBlurKey(SkScalar sigma, SkBlurStyle style, SkBlurQuality quality,
                  const SkRect rects[], int count)
         : fSigma(sigma)
         , fStyle(style)
         , fQuality(quality)
     {
         SkASSERT(1 == count || 2 == count);
         SkIRect ir;
         rects[0].roundOut(&ir);
-        fSizes[0] = SkSize::Make(0, 0);
-        fSizes[1] = SkSize::Make(0, 0);
-        fSizes[2] = SkSize::Make(0, 0);
+        fSizes[0] = SkSize::Make(rects[0].width(), rects[0].height());
+        if (2 == count) {
+            fSizes[1] = SkSize::Make(rects[1].width(), rects[1].height());
+            fSizes[2] = SkSize::Make(rects[0].x() - rects[1].x(), rects[0].y() - rects[1].y());
+        } else {
+            fSizes[1] = SkSize::Make(0, 0);
+            fSizes[2] = SkSize::Make(0, 0);
+        }
         fSizes[3] = SkSize::Make(rects[0].x() - ir.x(), rects[0].y() - ir.y());
-        for (int i = 0; i < count; i++) {
-            fSizes[i] = SkSize::Make(rects[i].width(), rects[i].height());
-        }
-        if (2 == count) {
-            fSizes[2] = SkSize::Make(rects[0].x() - rects[1].x(), rects[0].y() - rects[1].y());
-        }
 
         this->init(&gRectsBlurKeyNamespaceLabel, 0,
                    sizeof(fSigma) + sizeof(fStyle) + sizeof(fQuality) + sizeof(fSizes));
     }
 
     SkScalar    fSigma;
     int32_t     fStyle;
     int32_t     fQuality;
     SkSize      fSizes[4];
 };
@@ skipping 49 matching lines @@
     mask->fImage = (uint8_t*)(result.fData->data());
     return result.fData;
 }
 
 void SkMaskCache::Add(SkScalar sigma, SkBlurStyle style, SkBlurQuality quality,
                       const SkRect rects[], int count, const SkMask& mask, SkCachedData* data,
                       SkResourceCache* localCache) {
     RectsBlurKey key(sigma, style, quality, rects, count);
     return CHECK_LOCAL(localCache, add, Add, new RectsBlurRec(key, mask, data));
 }