init atomic bool in SkImage_Gpu

src/image/SkImage_Gpu.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapCache.h"
 #include "SkImage_Gpu.h"
 #include "GrContext.h"
 #include "GrDrawContext.h"
 #include "effects/GrYUVtoRGBEffect.h"
 #include "SkCanvas.h"
 #include "SkGpuDevice.h"
 #include "SkPixelRef.h"
 
 SkImage_Gpu::SkImage_Gpu(int w, int h, uint32_t uniqueID, SkAlphaType at, GrTexture* tex,
                          int sampleCountForNewSurfaces, SkSurface::Budgeted budgeted)
     : INHERITED(w, h, uniqueID, NULL)
     , fTexture(SkRef(tex))
     , fSampleCountForNewSurfaces(sampleCountForNewSurfaces)
     , fAlphaType(at)
     , fBudgeted(budgeted)
+    , fAddedRasterVersionToCache(false)
     {}
 
 SkImage_Gpu::~SkImage_Gpu() {
     if (fAddedRasterVersionToCache.load()) {
         SkNotifyBitmapGenIDIsStale(this->uniqueID());
     }
 }
 
 SkSurface* SkImage_Gpu::onNewSurface(const SkImageInfo& info, const SkSurfaceProps& props) const {
     GrTexture* tex = this->getTexture();
@@ skipping 237 matching lines @@
     if (!dst) {
         return NULL;
     }
     
     const SkIRect srcR = SkIRect::MakeWH(desc.fWidth, desc.fHeight);
     const SkIPoint dstP = SkIPoint::Make(0, 0);
     ctx->copySurface(dst, src, srcR, dstP, GrContext::kFlushWrites_PixelOp);
     return dst;
 }