Split memory-related routines out of base/process_util.h into base/process/memory.h.

base/base.gypi

Index: base/base.gypi
diff --git a/base/base.gypi b/base/base.gypi
index 7bfd924f655dc705413149bb2ea1daee64c3219c..548fa679c8fa4046cb8eff0c8e2c685cd055d307 100644
--- a/base/base.gypi
+++ b/base/base.gypi
@@ -394,6 +394,10 @@
           'process_win.cc',
           'process/internal_linux.cc',
           'process/internal_linux.h',
+          'process/memory.h',
+          'process/memory_linux.cc',
+          'process/memory_mac.mm',
+          'process/memory_win.cc',
           'process/process_iterator.cc',
           'process/process_iterator.h',
           'process/process_iterator_freebsd.cc',
@@ -715,6 +719,7 @@
             'sources/': [
               ['include', '^files/file_path_watcher_linux\\.cc$'],
               ['include', '^process_util_linux\\.cc$'],
+              ['include', '^process/memory_linux\\.cc$'],
               ['include', '^process/internal_linux\\.cc$'],
               ['include', '^process/process_iterator\\.cc$'],
               ['include', '^process/process_iterator_linux\\.cc$'],
@@ -756,6 +761,10 @@
               # needed on iOS (mostly for unit tests).
               ['exclude', '^process_util'],
               ['include', '^process_util_ios\\.mm$'],
+              ['exclude', '^process/memory_mac\\.mm$'],
+            ],
+            'sources': [
+              'process/memory_stubs.cc',
             ],
             'sources!': [
               'message_loop/message_pump_libevent.cc'
@@ -830,6 +839,9 @@
             ],
           }],
           ['<(os_bsd)==1 and >(nacl_untrusted_build)==0', {
+            'sources': [
+              'process/memory_stubs.cc',
+            ],
             'sources/': [
               ['exclude', '^files/file_path_watcher_linux\\.cc$'],
               ['exclude', '^files/file_path_watcher_stub\\.cc$'],