Move all callers of GetHomeDir() to PathService::Get(base::DIR_HOME).

chrome/app/chrome_main_delegate.cc

Index: chrome/app/chrome_main_delegate.cc
diff --git a/chrome/app/chrome_main_delegate.cc b/chrome/app/chrome_main_delegate.cc
index 9d5f3f03e16497f3a00786b07b801ed8a1f66bcb..168b32e9883ab402090cd3b268de83123403f838 100644
--- a/chrome/app/chrome_main_delegate.cc
+++ b/chrome/app/chrome_main_delegate.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/app/chrome_main_delegate.h"
 
+#include "base/base_paths.h"
 #include "base/command_line.h"
 #include "base/cpu.h"
 #include "base/files/file_path.h"
@@ -476,6 +477,16 @@ bool ChromeMainDelegate::BasicStartupComplete(int* exit_code) {
 #endif
 
 #if defined(OS_CHROMEOS)
+  // Initialize primary user homedir (in multi-profile session) as it may be
+  // passed as a command line switch.
+  base::FilePath homedir;
+  if (command_line.HasSwitch(chromeos::switches::kHomedir)) {
+    homedir = base::FilePath(
+        command_line.GetSwitchValueASCII(chromeos::switches::kHomedir));
+    PathService::OverrideAndCreateIfNeeded(
+        base::DIR_HOME, homedir, true, false);
+  }
+
   // If we are recovering from a crash on ChromeOS, then we will do some
   // recovery using the diagnostics module, and then continue on. We fake up a
   // command line to tell it that we want it to recover, and to preserve the