Revert of Views - init less stuff in tabless browsers.

chrome/browser/ui/views/toolbar/toolbar_view.cc

Index: chrome/browser/ui/views/toolbar/toolbar_view.cc
diff --git a/chrome/browser/ui/views/toolbar/toolbar_view.cc b/chrome/browser/ui/views/toolbar/toolbar_view.cc
index d057283c81ffb2cfcc330004b05a0b88923ba366..a94a409cdd249c94800faa69864940787929f163 100644
--- a/chrome/browser/ui/views/toolbar/toolbar_view.cc
+++ b/chrome/browser/ui/views/toolbar/toolbar_view.cc
@@ -14,6 +14,7 @@
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/command_updater.h"
+#include "chrome/browser/extensions/extension_commands_global_registry.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/themes/theme_properties.h"
@@ -121,18 +122,15 @@ const char ToolbarView::kViewClassName[] = "ToolbarView";
 // ToolbarView, public:
 
 ToolbarView::ToolbarView(Browser* browser)
-    : back_(nullptr),
-      forward_(nullptr),
-      reload_(nullptr),
-      home_(nullptr),
-      location_bar_(nullptr),
-      browser_actions_(nullptr),
-      app_menu_button_(nullptr),
+    : back_(NULL),
+      forward_(NULL),
+      reload_(NULL),
+      home_(NULL),
+      location_bar_(NULL),
+      browser_actions_(NULL),
+      app_menu_button_(NULL),
       browser_(browser),
-      badge_controller_(browser->profile(), this),
-      display_mode_(browser->SupportsWindowFeature(Browser::FEATURE_TABSTRIP)
-                        ? DISPLAYMODE_NORMAL
-                        : DISPLAYMODE_LOCATION) {
+      badge_controller_(browser->profile(), this) {
   set_id(VIEW_ID_TOOLBAR);
 
   SetEventTargeter(
@@ -144,6 +142,10 @@ ToolbarView::ToolbarView(Browser* browser)
   chrome::AddCommandObserver(browser_, IDC_HOME, this);
   chrome::AddCommandObserver(browser_, IDC_LOAD_NEW_TAB_PAGE, this);
 
+  display_mode_ = DISPLAYMODE_LOCATION;
+  if (browser->SupportsWindowFeature(Browser::FEATURE_TABSTRIP))
+    display_mode_ = DISPLAYMODE_NORMAL;
+
   if (OutdatedUpgradeBubbleView::IsAvailable()) {
     registrar_.Add(this, chrome::NOTIFICATION_OUTDATED_INSTALL,
                    content::NotificationService::AllSources());
@@ -163,16 +165,7 @@ ToolbarView::~ToolbarView() {
 }
 
 void ToolbarView::Init() {
-  location_bar_ =
-      new LocationBarView(browser_, browser_->profile(),
-                          browser_->command_controller()->command_updater(),
-                          this, !is_display_mode_normal());
-
-  if (!is_display_mode_normal()) {
-    AddChildView(location_bar_);
-    location_bar_->Init();
-    return;
-  }
+  GetWidget()->AddObserver(this);
 
   back_ = new BackButton(
       browser_->profile(), this,
@@ -196,6 +189,11 @@ void ToolbarView::Init() {
   forward_->set_id(VIEW_ID_FORWARD_BUTTON);
   forward_->Init();
 
+  location_bar_ = new LocationBarView(
+      browser_, browser_->profile(),
+      browser_->command_controller()->command_updater(), this,
+      display_mode_ == DISPLAYMODE_LOCATION);
+
   reload_ = new ReloadButton(browser_->profile(),
                              browser_->command_controller()->command_updater());
   reload_->set_triggerable_event_flags(
@@ -276,6 +274,19 @@ void ToolbarView::Init() {
   }
 }
 
+void ToolbarView::OnWidgetActivationChanged(views::Widget* widget,
+                                            bool active) {
+  extensions::ExtensionCommandsGlobalRegistry* registry =
+      extensions::ExtensionCommandsGlobalRegistry::Get(browser_->profile());
+  if (active) {
+    registry->set_registry_for_active_window(
+        browser_actions_->extension_keybinding_registry());
+  } else if (registry->registry_for_active_window() ==
+             browser_actions_->extension_keybinding_registry()) {
+    registry->set_registry_for_active_window(nullptr);
+  }
+}
+
 void ToolbarView::Update(WebContents* tab) {
   if (location_bar_)
     location_bar_->Update(tab);
@@ -329,6 +340,12 @@ void ToolbarView::OnBubbleCreatedForAnchor(views::View* anchor_view,
   }
 }
 
+void ToolbarView::ExecuteExtensionCommand(
+    const extensions::Extension* extension,
+    const extensions::Command& command) {
+  browser_actions_->ExecuteExtensionCommand(extension, command);
+}
+
 int ToolbarView::GetMaxBrowserActionsWidth() const {
   // The browser actions container is allowed to grow, but only up until the
   // omnibox reaches its minimum size. So its maximum allowed width is its
@@ -483,7 +500,7 @@ gfx::Size ToolbarView::GetMinimumSize() const {
 
 void ToolbarView::Layout() {
   // If we have not been initialized yet just do nothing.
-  if (!location_bar_)
+  if (back_ == NULL)
     return;
 
   if (!is_display_mode_normal()) {
@@ -592,8 +609,7 @@ void ToolbarView::Layout() {
 }
 
 void ToolbarView::OnThemeChanged() {
-  if (is_display_mode_normal())
-    LoadImages();
+  LoadImages();
 }
 
 const char* ToolbarView::GetClassName() const {