Remove USE_LINUX_BREAKPAD ifdef since we don't need it for chromium anymore.

base/process/memory.h

 // Copyright (c) 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 BASE_PROCESS_MEMORY_H_
 #define BASE_PROCESS_MEMORY_H_
 
 #include "base/basictypes.h"
 #include "base/base_export.h"
 #include "base/process.h"
@@ skipping 13 matching lines @@
 // Note: Returns true on Windows 2000 without doing anything.
 BASE_EXPORT bool EnableLowFragmentationHeap();
 
 // Enables 'terminate on heap corruption' flag. Helps protect against heap
 // overflow. Has no effect if the OS doesn't provide the necessary facility.
 BASE_EXPORT void EnableTerminationOnHeapCorruption();
 
 // Turns on process termination if memory runs out.
 BASE_EXPORT void EnableTerminationOnOutOfMemory();
 
-#if defined(USE_LINUX_BREAKPAD)
-BASE_EXPORT extern size_t g_oom_size;
-#endif
-
 #if defined(OS_WIN)
 // Returns the module handle to which an address belongs. The reference count
 // of the module is not incremented.
 BASE_EXPORT HMODULE GetModuleFromAddress(void* address);
 #endif
 
 #if defined(OS_LINUX) || defined(OS_ANDROID)
+BASE_EXPORT extern size_t g_oom_size;
+
 // The maximum allowed value for the OOM score.
 const int kMaxOomScore = 1000;
 
 // This adjusts /proc/<pid>/oom_score_adj so the Linux OOM killer will
 // prefer to kill certain process types over others. The range for the
 // adjustment is [-1000, 1000], with [0, 1000] being user accessible.
 // If the Linux system doesn't support the newer oom_score_adj range
 // of [0, 1000], then we revert to using the older oom_adj, and
 // translate the given value into [0, 15].  Some aliasing of values
 // may occur in that case, of course.
 BASE_EXPORT bool AdjustOOMScore(ProcessId process, int score);
 #endif
 
 #if defined(OS_MACOSX)
 // Very large images or svg canvases can cause huge mallocs.  Skia
 // does tricks on tcmalloc-based systems to allow malloc to fail with
 // a NULL rather than hit the oom crasher.  This replicates that for
 // OSX.
 //
 // IF YOU USE THIS WITHOUT CONSULTING YOUR FRIENDLY OSX DEVELOPER,
 // YOUR CODE IS LIKELY TO BE REVERTED.  THANK YOU.
 BASE_EXPORT void* UncheckedMalloc(size_t size);
 #endif  // defined(OS_MACOSX)
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_MEMORY_H_