[ash-md] WIP Added wallpaper color caching.

chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
 
 #include <utility>
 
 #include "ash/common/ash_constants.h"
 #include "ash/common/wallpaper/wallpaper_controller.h"
@@ skipping 31 matching lines @@
 #include "chrome/common/pref_names.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/cryptohome/system_salt_getter.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_service.h"
 #include "components/prefs/scoped_user_pref_update.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "components/user_manager/known_user.h"
 #include "components/user_manager/user_names.h"
 #include "components/user_manager/user_type.h"
+#include "components/wallpaper/pref_based_wallpaper_color_cache.h"
 #include "components/wallpaper/wallpaper_files_id.h"
 #include "components/wallpaper/wallpaper_layout.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/service_manager_connection.h"
 #include "crypto/sha2.h"
 #include "services/service_manager/public/cpp/connector.h"
 #include "url/gurl.h"
 
@@ skipping 319 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(PendingWallpaper);
 };
 
 // WallpaperManager, public: ---------------------------------------------------
 
 WallpaperManager::~WallpaperManager() {
   show_user_name_on_signin_subscription_.reset();
   device_wallpaper_image_subscription_.reset();
   user_manager::UserManager::Get()->RemoveSessionStateObserver(this);
   weak_factory_.InvalidateWeakPtrs();
+
+  if (wallpaper_color_cache_) {
+    ash::Shell::GetInstance()->wallpaper_controller()->SetWallpaperColorCache(

[jonross, 2017/03/28 14:33:27]

This pattern is the older method of having chrome inject delegates into ash.

This wouldn't work in the mash world. However it is not blocked by the
preferences changes which would delay access to the preference service via ash.

+        nullptr);
+  }
 }
 
 // static
 void WallpaperManager::Initialize() {
   CHECK(!wallpaper_manager);
   wallpaper_manager = new WallpaperManager();
 }
 
 // static
 WallpaperManager* WallpaperManager::Get() {
@@ skipping 65 matching lines @@
     // used here to determine if current user is guest.
     return;
   }
 
   if (command_line->HasSwitch(::switches::kTestType))
     WizardController::SetZeroDelays();
 
   // Zero delays is also set in autotests.
   if (WizardController::IsZeroDelayEnabled()) {
     // Ensure tests have some sort of wallpaper.
+    // Foobar();
     ash::Shell::GetInstance()->wallpaper_controller()->CreateEmptyWallpaper();
     return;
   }
 
   if (!user_manager->IsUserLoggedIn()) {
     if (!StartupUtils::IsDeviceRegistered())
       SetDefaultWallpaperDelayed(user_manager::SignInAccountId());
     else
       InitializeRegisteredDeviceWallpaper();
     return;
@@ skipping 875 matching lines @@
 }
 
 void WallpaperManager::SetDefaultWallpaperPath(
     const base::FilePath& default_small_wallpaper_file,
     std::unique_ptr<gfx::ImageSkia> small_wallpaper_image,
     const base::FilePath& default_large_wallpaper_file,
     std::unique_ptr<gfx::ImageSkia> large_wallpaper_image) {
   default_small_wallpaper_file_ = default_small_wallpaper_file;
   default_large_wallpaper_file_ = default_large_wallpaper_file;
 
+  // Foobar();
   ash::WallpaperController* controller =
       ash::Shell::GetInstance()->wallpaper_controller();
 
   // |need_update_screen| is true if the previous default wallpaper is visible
   // now, so we need to update wallpaper on the screen.
   //
   // Layout is ignored here, so wallpaper::WALLPAPER_LAYOUT_CENTER is used
   // as a placeholder only.
   const bool need_update_screen =
       default_wallpaper_image_.get() &&
@@ skipping 25 matching lines @@
   Profile* profile = ProfileHelper::Get()->GetProfileByUser(user);
 
   UMA_HISTOGRAM_ENUMERATION(
       "Ash.Wallpaper.Apps",
       wallpaper_manager_util::ShouldUseAndroidWallpapersApp(profile)
           ? WALLPAPERS_APP_ANDROID
           : WALLPAPERS_PICKER_APP_CHROMEOS,
       WALLPAPERS_APPS_NUM);
 }
 
+// void WallpaperManager::Foobar() {
+//   // TODO(bruthig): Install a color cache in Mash.
+//   LOG(ERROR) << " *** " << __FUNCTION__ << "() line=" << __LINE__ << "
+//   HERE!!!"; static int count = 0; if (count <= 0) {
+//     ++count;
+//     LOG(ERROR) << " *** " << __FUNCTION__ << "() line=" << __LINE__ << "
+//     Installed"; wallpaper_color_cache_ =
+//         base::MakeUnique<wallpaper::PrefBasedWallpaperColorCache>(
+//             g_browser_process->local_state());
+//     ash::Shell::GetInstance()->wallpaper_controller()->SetWallpaperColorCache(
+//         wallpaper_color_cache_.get());
+//   } else {
+
+//     LOG(ERROR) << " *** " << __FUNCTION__ << "() line=" << __LINE__ << "
+//     ash_util::IsRunningInMash()=" << ash_util::IsRunningInMash() << "
+//     ash::Shell::HasInstance()=" << ash::Shell::HasInstance();
+//   }
+// }
+
 }  // namespace chromeos