Upstreaming several patches from Chrome:

Build fix for systems where sys/user.h needs sys/types.h....
http://breakpad.appspot.com/40002
MDRawSystemInfo.processor_level refers to the CPU family, not the cpuid level..
http://breakpad.appspot.com/40003
Use MD_MODULE_SIZE in place of sizeof(MDRawModule).
http://breakpad.appspot.com/39003
Linux x64 compile fix.
http://breakpad.appspot.com/40004
Include linux_syscall_support.h to get definition of NT_PRXFPREG. This is
Chromium commit 23659.
http://breakpad.appspot.com/40005
Build breakpad / crash reporting on Linux 64-bit. This is Chromium commit
23396.
http://breakpad.appspot.com/40006
Fix #includes in a couple unit tests.
http://breakpad.appspot.com/41001
Clean up unused headers / files for Linux dump_syms.
http://breakpad.appspot.com/40002




git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@432 4c0a9323-5329-0410-9bdc-e9ce6186880e
diff --git a/src/client/linux/minidump_writer/linux_dumper.cc b/src/client/linux/minidump_writer/linux_dumper.cc
index e821db7..86ebb86 100644
--- a/src/client/linux/minidump_writer/linux_dumper.cc
+++ b/src/client/linux/minidump_writer/linux_dumper.cc
@@ -316,10 +316,12 @@
     return false;
   }
 
-#if defined(__i386) || defined(__x86_64)
+#if defined(__i386)
   if (sys_ptrace(PTRACE_GETFPXREGS, tid, NULL, &info->fpxregs) == -1)
     return false;
+#endif
 
+#if defined(__i386) || defined(__x86_64)
   for (unsigned i = 0; i < ThreadInfo::kNumDebugRegisters; ++i) {
     if (sys_ptrace(
         PTRACE_PEEKUSER, tid,