Add profile selector menu to app list.

chrome/browser/ui/app_list/apps_model_builder.cc

Index: chrome/browser/ui/app_list/apps_model_builder.cc
diff --git a/chrome/browser/ui/app_list/apps_model_builder.cc b/chrome/browser/ui/app_list/apps_model_builder.cc
index b662b4537f18f1e81c044f4cd06ae4d4126915d1..ee8e559ae7c80cb09780f5c3bf3609045d8e221b 100644
--- a/chrome/browser/ui/app_list/apps_model_builder.cc
+++ b/chrome/browser/ui/app_list/apps_model_builder.cc
@@ -59,8 +59,10 @@ AppsModelBuilder::AppsModelBuilder(Profile* profile,
       model_(model),
       highlighted_app_pending_(false),
       ignore_changes_(false),
-      tracker_(extensions::InstallTrackerFactory::GetForProfile(profile_)) {
+      tracker_(NULL) {
   model_->AddObserver(this);
+  // Build the model.
+  SwitchProfile(profile);
 }
 
 AppsModelBuilder::~AppsModelBuilder() {
@@ -68,16 +70,6 @@ AppsModelBuilder::~AppsModelBuilder() {
   model_->RemoveObserver(this);
 }
 
-void AppsModelBuilder::Build() {
-  DCHECK(model_ && model_->item_count() == 0);
-
-  PopulateApps();
-  UpdateHighlight();
-
-  // Start observing after model is built.
-  tracker_->AddObserver(this);
-}
-
 void AppsModelBuilder::OnBeginExtensionInstall(
     const std::string& extension_id,
     const std::string& extension_name,
@@ -172,6 +164,23 @@ void AppsModelBuilder::AddApps(const ExtensionSet* extensions, Apps* apps) {
   }
 }
 
+void AppsModelBuilder::SwitchProfile(Profile* profile) {

[xiyuan, 2013/09/11 05:01:49]

nit: return early if profile_ == profile

[calamity, 2013/09/13 18:02:35]

Done.

+  profile_ = profile;
+  model_->DeleteAll();
+  if (tracker_)
+    tracker_->RemoveObserver(this);
+
+  tracker_ = extensions::InstallTrackerFactory::GetForProfile(profile_);
+
+  DCHECK(model_ && model_->item_count() == 0);
+
+  PopulateApps();
+  UpdateHighlight();
+
+  // Start observing after model is built.
+  tracker_->AddObserver(this);
+}
+
 void AppsModelBuilder::PopulateApps() {
   ExtensionService* service =
       extensions::ExtensionSystem::Get(profile_)->extension_service();