Disabled transparency for header bars on the signin screen.

chrome/browser/chromeos/login/webui_login_display_host.cc

Index: chrome/browser/chromeos/login/webui_login_display_host.cc
diff --git a/chrome/browser/chromeos/login/webui_login_display_host.cc b/chrome/browser/chromeos/login/webui_login_display_host.cc
index ecc3cd0e20c76b04c5bd49a122e32931e7b23ab6..60c7205b188dcbe268969001f9487179876c04b4 100644
--- a/chrome/browser/chromeos/login/webui_login_display_host.cc
+++ b/chrome/browser/chromeos/login/webui_login_display_host.cc
@@ -9,6 +9,7 @@
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/window_animations.h"
+#include "ash/wm/window_properties.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ -27,6 +28,7 @@
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
 #include "ui/aura/env.h"
+#include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 #include "ui/views/widget/widget.h"
 
@@ -66,7 +68,8 @@ WebUILoginDisplayHost::WebUILoginDisplayHost(const gfx::Rect& background_bounds)
       is_wallpaper_loaded_(false),
       status_area_saved_visibility_(false),
       crash_count_(0),
-      restore_path_(RESTORE_UNKNOWN) {
+      restore_path_(RESTORE_UNKNOWN),
+      old_ignore_solo_window_policy_value_(false) {
   bool is_registered = WizardController::IsDeviceRegistered();
   bool zero_delay_enabled = WizardController::IsZeroDelayEnabled();
   bool disable_boot_animation = CommandLine::ForCurrentProcess()->
@@ -136,8 +139,7 @@ WebUILoginDisplayHost::WebUILoginDisplayHost(const gfx::Rect& background_bounds)
 }
 
 WebUILoginDisplayHost::~WebUILoginDisplayHost() {
-  if (login_window_)
-    login_window_->Close();
+  ResetLoginWindowAndView();
 }
 
 // LoginDisplayHost implementation ---------------------------------------------
@@ -228,11 +230,7 @@ void WebUILoginDisplayHost::OnPreferencesChanged() {
 
 void WebUILoginDisplayHost::OnBrowserCreated() {
   // Close lock window now so that the launched browser can receive focus.
-  if (login_window_) {
-    login_window_->Close();
-    login_window_ = NULL;
-    login_view_ = NULL;
-  }
+  ResetLoginWindowAndView();
 }
 
 void WebUILoginDisplayHost::Observe(
@@ -276,48 +274,7 @@ void WebUILoginDisplayHost::Observe(
 }
 
 void WebUILoginDisplayHost::LoadURL(const GURL& url) {
-  if (!login_window_) {
-    views::Widget::InitParams params(
-        views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
-    params.bounds = background_bounds();
-    params.show_state = ui::SHOW_STATE_FULLSCREEN;
-    if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableNewOobe))
-      params.transparent = true;
-    params.parent =
-        ash::Shell::GetContainer(
-            ash::Shell::GetPrimaryRootWindow(),
-            ash::internal::kShellWindowId_LockScreenContainer);
-
-    login_window_ = new views::Widget;
-    login_window_->Init(params);
-    login_view_ = new WebUILoginView();
-
-    login_view_->Init(login_window_);
-
-    views::corewm::SetWindowVisibilityAnimationDuration(
-        login_window_->GetNativeView(),
-        base::TimeDelta::FromMilliseconds(kLoginFadeoutTransitionDurationMs));
-    views::corewm::SetWindowVisibilityAnimationTransition(
-        login_window_->GetNativeView(),
-        views::corewm::ANIMATE_HIDE);
-
-    login_window_->SetContentsView(login_view_);
-    login_view_->UpdateWindowType();
-
-    // If WebUI is initialized in hidden state, show it only if we're no
-    // longer waiting for wallpaper animation/user images loading. Otherwise,
-    // always show it.
-    if (!initialize_webui_hidden_ ||
-        (!waiting_for_wallpaper_load_ && !waiting_for_user_pods_)) {
-      LOG(INFO) << "Login WebUI >> show login wnd on create";
-      login_window_->Show();
-    } else {
-      LOG(INFO) << "Login WebUI >> login wnd is hidden on create";
-      login_view_->set_is_hidden(true);
-    }
-    login_window_->GetNativeView()->SetName("WebUILoginView");
-    login_view_->OnWindowCreated();
-  }
+  InitLoginWindowAndView();
   // Subscribe to crash events.
   content::WebContentsObserver::Observe(login_view_->GetWebContents());
   login_view_->LoadURL(url);
@@ -403,4 +360,74 @@ void WebUILoginDisplayHost::StartPostponedWebUI() {
   }
 }
 
+void WebUILoginDisplayHost::InitLoginWindowAndView() {
+  if (login_window_)
+    return;
+
+  views::Widget::InitParams params(
+      views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
+  params.bounds = background_bounds();
+  params.show_state = ui::SHOW_STATE_FULLSCREEN;
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableNewOobe))
+    params.transparent = true;
+  params.parent =
+      ash::Shell::GetContainer(
+          ash::Shell::GetPrimaryRootWindow(),
+          ash::internal::kShellWindowId_LockScreenContainer);
+
+  login_window_ = new views::Widget;
+  login_window_->Init(params);
+  if (login_window_->GetNativeWindow()) {
+    aura::RootWindow* root = login_window_->GetNativeWindow()->GetRootWindow();
+    if (root) {
+      old_ignore_solo_window_policy_value_ =
+          root->GetProperty(ash::internal::kIgnoreSoloWindowPolicy);
+      root->SetProperty(ash::internal::kIgnoreSoloWindowPolicy, true);
+    }
+  }
+  login_view_ = new WebUILoginView();
+
+  login_view_->Init(login_window_);
+
+  views::corewm::SetWindowVisibilityAnimationDuration(
+      login_window_->GetNativeView(),
+      base::TimeDelta::FromMilliseconds(kLoginFadeoutTransitionDurationMs));
+  views::corewm::SetWindowVisibilityAnimationTransition(
+      login_window_->GetNativeView(),
+      views::corewm::ANIMATE_HIDE);
+
+  login_window_->SetContentsView(login_view_);
+  login_view_->UpdateWindowType();
+
+  // If WebUI is initialized in hidden state, show it only if we're no
+  // longer waiting for wallpaper animation/user images loading. Otherwise,
+  // always show it.
+  if (!initialize_webui_hidden_ ||
+      (!waiting_for_wallpaper_load_ && !waiting_for_user_pods_)) {
+    LOG(INFO) << "Login WebUI >> show login wnd on create";
+    login_window_->Show();
+  } else {
+    LOG(INFO) << "Login WebUI >> login wnd is hidden on create";
+    login_view_->set_is_hidden(true);
+  }
+  login_window_->GetNativeView()->SetName("WebUILoginView");
+  login_view_->OnWindowCreated();
+}
+
+void WebUILoginDisplayHost::ResetLoginWindowAndView() {
+  if (!login_window_)
+    return;
+
+  if (login_window_->GetNativeWindow()) {
+    aura::RootWindow* root = login_window_->GetNativeWindow()->GetRootWindow();
+    if (root) {
+      root->SetProperty(ash::internal::kIgnoreSoloWindowPolicy,
+                        old_ignore_solo_window_policy_value_);
+    }
+  }
+  login_window_->Close();
+  login_window_ = NULL;
+  login_view_ = NULL;
+}
+
 }  // namespace chromeos