add hard-coded limit for tmp allocations when HQ image scaling

src/core/SkBitmapScaler.cpp

Index: src/core/SkBitmapScaler.cpp
diff --git a/src/core/SkBitmapScaler.cpp b/src/core/SkBitmapScaler.cpp
index 962fdce3758c126b2b81d1bf67588d45bcd392b0..965955a2dcbf6ebb8779da496089902666a9ca13 100644
--- a/src/core/SkBitmapScaler.cpp
+++ b/src/core/SkBitmapScaler.cpp
@@ -245,11 +245,13 @@ bool SkBitmapScaler::Resize(SkBitmap* resultPtr, const SkPixmap& source, ResizeM
       return false;
     }
 
-    BGRAConvolve2D(sourceSubset, static_cast<int>(source.rowBytes()),
-      !source.isOpaque(), filter.xFilter(), filter.yFilter(),
-      static_cast<int>(result.rowBytes()),
-      static_cast<unsigned char*>(result.getPixels()),
-      convolveProcs, true);
+    if (!BGRAConvolve2D(sourceSubset, static_cast<int>(source.rowBytes()),
+                        !source.isOpaque(), filter.xFilter(), filter.yFilter(),
+                        static_cast<int>(result.rowBytes()),
+                        static_cast<unsigned char*>(result.getPixels()),
+                        convolveProcs, true)) {
+        return false;
+    }
 
     *resultPtr = result;
     resultPtr->lockPixels();