Keep only base/extractor.[cc|h].

third_party/breakpad/src/google_breakpad/processor/call_stack.h

-// Copyright (c) 2006, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// call_stack.h: A call stack comprised of stack frames.
-//
-// This class manages a vector of stack frames.  It is used instead of
-// exposing the vector directly to allow the CallStack to own StackFrame
-// pointers without having to publicly export the linked_ptr class.  A
-// CallStack must be composed of pointers instead of objects to allow for
-// CPU-specific StackFrame subclasses.
-//
-// By convention, the stack frame at index 0 is the innermost callee frame,
-// and the frame at the highest index in a call stack is the outermost
-// caller.  CallStack only allows stacks to be built by pushing frames,
-// beginning with the innermost callee frame.
-//
-// Author: Mark Mentovai
-
-#ifndef GOOGLE_BREAKPAD_PROCESSOR_CALL_STACK_H__
-#define GOOGLE_BREAKPAD_PROCESSOR_CALL_STACK_H__
-
-#include <vector>
-
-namespace google_breakpad {
-
-using std::vector;
-
-struct StackFrame;
-template<typename T> class linked_ptr;
-
-class CallStack {
- public:
-  CallStack() { Clear(); }
-  ~CallStack();
-
-  // Resets the CallStack to its initial empty state
-  void Clear();
-  
-  const vector<StackFrame*>* frames() const { return &frames_; }
-
- private:
-  // Stackwalker is responsible for building the frames_ vector.
-  friend class Stackwalker;
-
-  // Storage for pushed frames.
-  vector<StackFrame*> frames_;
-};
-
-}  // namespace google_breakpad
-
-#endif  // GOOGLE_BREAKPAD_PROCSSOR_CALL_STACK_H__