Add check for executable stack/heap when rating Linux exploitability.

src/processor/exploitability_linux.h

Index: src/processor/exploitability_linux.h
===================================================================
--- src/processor/exploitability_linux.h	(revision 1481)
+++ src/processor/exploitability_linux.h	(working copy)
@@ -58,6 +58,10 @@
   // This method checks the exception that triggered the creation of the
   // minidump and reports whether the exception suggests no exploitability.
   bool BenignCrashTrigger(const MDRawExceptionStream *raw_exception_stream);
+
+  // This method checks if the stack or heap are marked executable according

[ivanpe, 2015/08/12 00:26:23]

optional: you may want to remove "This method " from the description of this
method and the other two above it.

[liuandrew, 2015/08/14 22:43:36]

Done.

+  // to the memory mappings.
+  bool ExecutableStackOrHeap();
 };
 
 }  // namespace google_breakpad