Add profile selector menu to app list.

chrome/browser/ui/app_list/chrome_signin_delegate.cc

Index: chrome/browser/ui/app_list/chrome_signin_delegate.cc
diff --git a/chrome/browser/ui/app_list/chrome_signin_delegate.cc b/chrome/browser/ui/app_list/chrome_signin_delegate.cc
index ed9639d0cdbbf333a44c470c1c1757973ea86354..fda9b607904736190164ef4f6a17bf0a5dda4ea6 100644
--- a/chrome/browser/ui/app_list/chrome_signin_delegate.cc
+++ b/chrome/browser/ui/app_list/chrome_signin_delegate.cc
@@ -4,8 +4,10 @@
 
 #include "chrome/browser/ui/app_list/chrome_signin_delegate.h"
 
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/signin/signin_manager.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ -100,6 +102,14 @@ string16 ChromeSigninDelegate::GetSettingsLinkText() {
   return rb.GetLocalizedString(IDS_APP_LIST_SIGNIN_SETTINGS_TEXT);
 }
 
+void ChromeSigninDelegate::SetProfileByPath(
+    const base::FilePath& profile_path) {
+  // The profile must be loaded before this is called.
+  profile_ =
+      g_browser_process->profile_manager()->GetProfileByPath(profile_path);
+  DCHECK(profile_);
+}
+
 ChromeSigninDelegate::~ChromeSigninDelegate() {}
 
 void ChromeSigninDelegate::SigninFailed(const GoogleServiceAuthError& error) {}