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

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 0acee1080e69f874536f21a8d9029a67d5ec0dfa..a6acee278f5f3b413b2992494fb2e9a9b63a29d4 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -1511,6 +1511,14 @@ void ChromeContentBrowserClient::AppendExtraCommandLineSwitches(
                                  arraysize(kIpcFuzzerSwitches));
 #endif
 
+#if defined(OS_CHROMEOS)
+  // On Chrome OS need to pass primary user homedir (in multi-profiles session).
+  base::FilePath homedir;
+  PathService::Get(base::DIR_HOME, &homedir);
+  command_line->AppendSwitchASCII(chromeos::switches::kHomedir,
+                                  homedir.value().c_str());
+#endif
+
   if (process_type == switches::kRendererProcess) {
 #if defined(OS_CHROMEOS)
     const std::string& login_profile =