Move a bunch of content\common code into the content namespace.

content/common/set_process_title_linux.cc

Index: content/common/set_process_title_linux.cc
===================================================================
--- content/common/set_process_title_linux.cc	(revision 163359)
+++ content/common/set_process_title_linux.cc	(working copy)
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// This file implements BSD-style setproctitle() for Linux.
+// This file implements BSD-style SetProcTitle() for Linux.
 // It is written such that it can easily be compiled outside Chromium.
 //
 // The Linux kernel sets up two locations in memory to pass arguments and
@@ -45,12 +45,14 @@
 #include <string.h>
 #include <unistd.h>
 
+namespace content {
+
 extern char** environ;
 
 static char** g_main_argv = NULL;
 static char* g_orig_argv0 = NULL;
 
-void setproctitle(const char* fmt, ...) {
+void SetProcTitle(const char* fmt, ...) {
   va_list ap;
   size_t i, avail_size;
   uintptr_t page_size, page, page_end;
@@ -103,7 +105,7 @@
 
 // A version of this built into glibc would not need this function, since
 // it could stash the argv pointer in __libc_start_main(). But we need it.
-void setproctitle_init(const char** main_argv) {
+void SetProcTitleInit(const char** main_argv) {
   if (g_main_argv)
     return;
 
@@ -113,3 +115,5 @@
   if (((uintptr_t) environ) / page_size == ((uintptr_t) main_argv) / page_size)
     g_main_argv = const_cast<char**>(main_argv);
 }
+
+}  // namespace content