cc: Fix incomplete changes to add ETC1 support

cc/resources/etc1_pixel_ref.h

Index: cc/resources/etc1_pixel_ref.h
diff --git a/cc/resources/etc1_pixel_ref.h b/cc/resources/etc1_pixel_ref.h
new file mode 100644
index 0000000000000000000000000000000000000000..553e3bf408edd39fa3f18819bb7ba043d01f0a98
--- /dev/null
+++ b/cc/resources/etc1_pixel_ref.h
@@ -0,0 +1,37 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CC_RESOURCES_ETC1_PIXEL_REF_H_
+#define CC_RESOURCES_ETC1_PIXEL_REF_H_
+
+#include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
+#include "cc/base/cc_export.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "third_party/skia/include/core/SkFlattenable.h"
+#include "third_party/skia/include/core/SkPixelRef.h"
+
+namespace cc {
+
+class CC_EXPORT ETC1PixelRef : public SkPixelRef {
+ public:
+  // Takes ownership of pixels.
+  explicit ETC1PixelRef(scoped_ptr<uint8_t[]> pixels);
+  virtual ~ETC1PixelRef();
+
+  // SK_DECLARE_UNFLATTENABLE_OBJECT
+  virtual Factory getFactory() const SK_OVERRIDE;
+
+ protected:
+  // Implementation of SkPixelRef.
+  virtual void* onLockPixels(SkColorTable** color_table) SK_OVERRIDE;
+  virtual void onUnlockPixels() SK_OVERRIDE;
+
+ private:
+  scoped_ptr<uint8_t[]> pixels_;
+};
+
+}  // namespace cc
+
+#endif  // CC_RESOURCES_ETC1_PIXEL_REF_H_