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diff --git a/toolkit/crashreporter/google-breakpad/src/processor/stackwalker_mips.h b/toolkit/crashreporter/google-breakpad/src/processor/stackwalker_mips.h
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index 5f97791fb..000000000
--- a/toolkit/crashreporter/google-breakpad/src/processor/stackwalker_mips.h
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2013 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.
-
-// stackwalker_mips.h: MIPS-specific stackwalker.
-//
-// Provides stack frames given MIPS register context and a memory region
-// corresponding to a MIPSstack.
-//
-// Author: Tata Elxsi
-
-#ifndef PROCESSOR_STACKWALKER_MIPS_H__
-#define PROCESSOR_STACKWALKER_MIPS_H__
-
-#include "google_breakpad/common/breakpad_types.h"
-#include "google_breakpad/common/minidump_format.h"
-#include "google_breakpad/processor/stackwalker.h"
-#include "google_breakpad/processor/stack_frame_cpu.h"
-#include "processor/cfi_frame_info.h"
-
-namespace google_breakpad {
-
-class CodeModules;
-
-class StackwalkerMIPS : public Stackwalker {
- public:
-  // Context is a MIPS context object that gives access to mips-specific
-  // register state corresponding to the innermost called frame to be
-  // included in the stack.  The other arguments are passed directly
-  // through to the base Stackwalker constructor.
-  StackwalkerMIPS(const SystemInfo* system_info,
-                  const MDRawContextMIPS* context,
-                  MemoryRegion* memory,
-                  const CodeModules* modules,
-                  StackFrameSymbolizer* frame_symbolizer);
-
- private:
-  // Implementation of Stackwalker, using mips context and stack conventions.
-  virtual StackFrame* GetContextFrame();
-  virtual StackFrame* GetCallerFrame(const CallStack* stack,
-                                     bool stack_scan_allowed);
-
-  // Use cfi_frame_info (derived from STACK CFI records) to construct
-  // the frame that called frames.back(). The caller takes ownership
-  // of the returned frame. Return NULL on failure.
-  StackFrameMIPS* GetCallerByCFIFrameInfo(const vector<StackFrame*>& frames,
-                                          CFIFrameInfo* cfi_frame_info);
-
-  // Scan the stack for plausible return address and frame pointer pair. 
-  // The caller takes ownership of the returned frame. Return NULL on failure.
-  StackFrameMIPS* GetCallerByStackScan(const vector<StackFrame*>& frames);
-
-  // Stores the CPU context corresponding to the innermost stack frame to
-  // be returned by GetContextFrame.
-  const MDRawContextMIPS* context_;
-};
-
-}  // namespace google_breakpad
-
-#endif  // PROCESSOR_STACKWALKER_MIPS_H__