Update from https://crrev.com/311076

cc/debug/picture_debug_util.h

Index: cc/debug/picture_debug_util.h
diff --git a/cc/debug/picture_debug_util.h b/cc/debug/picture_debug_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..1719ea27632894b51a6ac0627fa4bd66e4487ff6
--- /dev/null
+++ b/cc/debug/picture_debug_util.h
@@ -0,0 +1,21 @@
+// Copyright 2015 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_DEBUG_PICTURE_DEBUG_UTIL_H_
+#define CC_DEBUG_PICTURE_DEBUG_UTIL_H_
+
+#include <string>
+
+class SkPicture;
+
+namespace cc {
+
+class PictureDebugUtil {
+ public:
+  static void SerializeAsBase64(const SkPicture* picture, std::string* output);
+};
+
+}  // namespace cc
+
+#endif  // CC_DEBUG_PICTURE_DEBUG_UTIL_H_