cc: Add frame data to LTHI tracing

cc/output/filter_operations.h

 // 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_OUTPUT_FILTER_OPERATIONS_H_
 #define CC_OUTPUT_FILTER_OPERATIONS_H_
 
 #include <vector>
 
 #include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
 #include "cc/output/filter_operation.h"
 
+namespace base {
+class Value;
+}
+
 namespace cc {
 
 // An ordered list of filter operations.
 class CC_EXPORT FilterOperations {
  public:
   FilterOperations();
 
   FilterOperations(const FilterOperations& other);
 
   ~FilterOperations();
@@ skipping 32 matching lines @@
   // |progress| fraction of the way from the filter in |from|
   // to the filter in this. If either |from| or this is an empty sequence,
   // it is treated as a sequence of the same length as the other sequence,
   // where the filter at each position is a no-op filter of the same type
   // as the filter in that position in the other sequence. Otherwise, if
   // both |from| and this are non-empty sequences but are either of different
   // lengths or if there is a type mismatch at some position, returns a copy
   // of this.
   FilterOperations Blend(const FilterOperations& from, double progress) const;
 
+  scoped_ptr<base::Value> AsValue() const;
+
  private:
   std::vector<FilterOperation> operations_;
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_FILTER_OPERATIONS_H_