cc: Fix incomplete changes to add ETC1 support

cc/resources/etc1_pixel_ref.cc

+// 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.
+
+#include "cc/resources/etc1_pixel_ref.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "third_party/skia/include/core/SkPixelRef.h"
+
+namespace cc {
+
+// Takes ownership of pixels.
+ETC1PixelRef::ETC1PixelRef(scoped_ptr<uint8_t[]> pixels)
+    : pixels_(pixels.Pass()) {
+  setImmutable();
+}
+
+void* ETC1PixelRef::onLockPixels(SkColorTable** color_table) SK_OVERRIDE {
+  *color_table = NULL;
+  return static_cast<void*>(pixels_.get());
+}
+
+}  // namespace cc