Storage manager: Show Google Drive offline files.

chrome/browser/ui/webui/options/chromeos/storage_manager_handler.cc

Index: chrome/browser/ui/webui/options/chromeos/storage_manager_handler.cc
diff --git a/chrome/browser/ui/webui/options/chromeos/storage_manager_handler.cc b/chrome/browser/ui/webui/options/chromeos/storage_manager_handler.cc
index 34afd551778dd2b6436b76aa642e00b76d625da4..d8214542295d0f302e500b5faf02ec2891c37112 100644
--- a/chrome/browser/ui/webui/options/chromeos/storage_manager_handler.cc
+++ b/chrome/browser/ui/webui/options/chromeos/storage_manager_handler.cc
@@ -10,10 +10,12 @@
 #include "base/sys_info.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/arc/arc_auth_service.h"
+#include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/file_manager/path_util.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/grit/generated_resources.h"
+#include "components/drive/chromeos/file_system_interface.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/text/bytes_formatting.h"
@@ -47,6 +49,8 @@ void StorageManagerHandler::GetLocalizedValues(
 
   RegisterTitle(localized_strings, "storageManagerPage",
                 IDS_OPTIONS_SETTINGS_STORAGE_MANAGER_TAB_TITLE);
+  RegisterTitle(localized_strings, "storageClearDriveCachePage",
+                IDS_OPTIONS_SETTINGS_STORAGE_CLEAR_DRIVE_CACHE_TAB_TITLE);
 
   localized_strings->SetString(
       "storageItemLabelCapacity", l10n_util::GetStringUTF16(
@@ -61,11 +65,20 @@ void StorageManagerHandler::GetLocalizedValues(
       "storageSubitemLabelDownloads", l10n_util::GetStringUTF16(
           IDS_OPTIONS_SETTINGS_STORAGE_SUBITEM_LABEL_DOWNLOADS));
   localized_strings->SetString(
+      "storageSubitemLabelDriveCache", l10n_util::GetStringUTF16(
+          IDS_OPTIONS_SETTINGS_STORAGE_SUBITEM_LABEL_DRIVE_CACHE));
+  localized_strings->SetString(
       "storageSubitemLabelArc", l10n_util::GetStringUTF16(
           IDS_OPTIONS_SETTINGS_STORAGE_SUBITEM_LABEL_ARC));
   localized_strings->SetString(
       "storageSizeCalculating", l10n_util::GetStringUTF16(
           IDS_OPTIONS_SETTINGS_STORAGE_SIZE_CALCULATING));
+  localized_strings->SetString(
+      "storageClearDriveCacheDescription", l10n_util::GetStringUTF16(
+          IDS_OPTIONS_SETTINGS_STORAGE_CLEAR_DRIVE_CACHE_DESCRIPTION));
+  localized_strings->SetString(
+      "storageDeleteAllButtonTitle", l10n_util::GetStringUTF16(
+          IDS_OPTIONS_SETTINGS_STORAGE_DELETE_ALL_BUTTON_TITLE));
 }
 
 void StorageManagerHandler::InitializePage() {
@@ -87,12 +100,17 @@ void StorageManagerHandler::RegisterMessages() {
       "openArcStorage",
       base::Bind(&StorageManagerHandler::HandleOpenArcStorage,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "clearDriveCache",
+      base::Bind(&StorageManagerHandler::HandleClearDriveCache,
+                 base::Unretained(this)));
 }
 
 void StorageManagerHandler::HandleUpdateStorageInfo(
     const base::ListValue* unused_args) {
   UpdateSizeStat();
   UpdateDownloadsSize();
+  UpdateDriveCacheSize();
   UpdateArcSize();
 }
 
@@ -113,6 +131,16 @@ void StorageManagerHandler::HandleOpenArcStorage(
   arc::ArcStorageManager::Get()->OpenPrivateVolumeSettings();
 }
 
+void StorageManagerHandler::HandleClearDriveCache(
+    const base::ListValue* unused_args) {
+  drive::FileSystemInterface* const file_system =
+      drive::util::GetFileSystemByProfile(Profile::FromWebUI(web_ui()));
+  file_system->FreeDiskSpaceIfNeededFor(
+      std::numeric_limits<int64_t>::max(),  // Removes as much as possible.
+      base::Bind(&StorageManagerHandler::OnClearDriveCacheDone,
+                 weak_ptr_factory_.GetWeakPtr()));
+}
+
 void StorageManagerHandler::UpdateSizeStat() {
   Profile* const profile = Profile::FromWebUI(web_ui());
   const base::FilePath downloads_path =
@@ -164,6 +192,20 @@ void StorageManagerHandler::OnGetDownloadsSize(int64_t size) {
       base::StringValue(ui::FormatBytes(size)));
 }
 
+void StorageManagerHandler::UpdateDriveCacheSize() {
+  drive::FileSystemInterface* const file_system =
+      drive::util::GetFileSystemByProfile(Profile::FromWebUI(web_ui()));
+  file_system->CalculateCacheSize(
+      base::Bind(&StorageManagerHandler::OnGetDriveCacheSize,
+                 weak_ptr_factory_.GetWeakPtr()));
+}
+
+void StorageManagerHandler::OnGetDriveCacheSize(int64_t size) {
+  web_ui()->CallJavascriptFunctionUnsafe(
+      "options.StorageManager.setDriveCacheSize",
+      base::StringValue(ui::FormatBytes(size)));
+}
+
 void StorageManagerHandler::UpdateArcSize() {
   Profile* const profile = Profile::FromWebUI(web_ui());
   if (!arc::ArcAuthService::IsAllowedForProfile(profile) ||
@@ -202,5 +244,9 @@ void StorageManagerHandler::OnGetArcSize(bool succeeded,
                                          arc_size);
 }
 
+void StorageManagerHandler::OnClearDriveCacheDone(bool success) {
+  UpdateDriveCacheSize();
+}
+
 }  // namespace options
 }  // namespace chromeos