Add a GrLayerCache to GrContext

src/gpu/SkGpuDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuDevice.h"
 
 #include "effects/GrBicubicEffect.h"
 #include "effects/GrTextureDomain.h"
 #include "effects/GrSimpleTextureEffect.h"
 
 #include "GrContext.h"
 #include "GrBitmapTextContext.h"
 #include "GrDistanceFieldTextContext.h"
+#include "GrLayerCache.h"
 #include "GrPictureUtils.h"
 
 #include "SkGrTexturePixelRef.h"
 
 #include "SkBounder.h"
 #include "SkColorFilter.h"
 #include "SkDeviceImageFilterProxy.h"
 #include "SkDrawProcs.h"
 #include "SkGlyphCache.h"
 #include "SkImageFilter.h"
@@ skipping 1999 matching lines @@
             if (ops.offset(i) > info.fSaveLayerOpID && ops.offset(i) < info.fRestoreOpID) {
                 pullForward[j] = true;
             }
         }
     }
 
 #ifdef SK_PRINT_PULL_FORWARD_INFO
     SkDebugf("Need SaveLayers: ");
     for (int i = 0; i < gpuData->numSaveLayers(); ++i) {
         if (pullForward[i]) {
-            SkDebugf("%d, ", i);
+            const GrAtlasedLayer* layer = fContext->getLayerCache()->findLayerOrCreate(picture, i);
+
+            SkDebugf("%d (%d), ", i, layer->layerID());
         }
     }
     SkDebugf("\n");
 #endif
 
     return false;
 }