Make SkGpuDevice know its alpha type

tools/PictureRenderer.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 "PictureRenderer.h"
 #include "picture_utils.h"
 #include "SamplePipeControllers.h"
@@ skipping 141 matching lines @@
                 desc.fConfig = kSkia8888_GrPixelConfig;
                 desc.fFlags = kRenderTarget_GrSurfaceFlag;
                 desc.fWidth = width;
                 desc.fHeight = height;
                 desc.fSampleCnt = fSampleCount;
                 target.reset(fGrContext->textureProvider()->createTexture(desc, false, NULL, 0));
             }
 
             uint32_t flags = fUseDFText ? SkSurfaceProps::kUseDistanceFieldFonts_Flag : 0;
             SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType);
-            SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(target->asRenderTarget(), &props));
+            SkAutoTUnref<SkGpuDevice> device(
+                SkGpuDevice::Create(target->asRenderTarget(), &props,
+                                    SkGpuDevice::kUninit_InitContents));
             if (!device) {
                 return NULL;
             }
             canvas.reset(SkNEW_ARGS(SkCanvas, (device)));
             break;
         }
 #endif
         default:
             SkASSERT(0);
             return NULL;
@@ skipping 646 matching lines @@
         case kNone_BBoxHierarchyType:
             return NULL;
         case kRTree_BBoxHierarchyType:
             return SkNEW(SkRTreeFactory);
     }
     SkASSERT(0); // invalid bbhType
     return NULL;
 }
 
 } // namespace sk_tools