If no locale data files can be found, show a dialog and exit

with RESULT_CODE_MISSING_DATA.  We used to just CHECK() crash.

BUG=69194


Review URL: http://codereview.chromium.org/7610009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@96627 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/browser_main.cc

@@ -831,6 +831,14 @@ bool IsCrashReportingEnabled(const PrefService* local_state) {
 
 }  // namespace
 
+namespace chrome_browser {
+// This error message is not localized because we failed to load the
+// localization data files.
+const char kMissingLocaleDataTitle[] = "Missing File Error";
+const char kMissingLocaleDataMessage[] =
+    "Unable to find locale data files. Please reinstall.";
+}  // namespace chrome_browser
+
 // BrowserMainParts ------------------------------------------------------------
 
 BrowserMainParts::BrowserMainParts(const MainFunctionParams& parameters)
@@ -1440,6 +1448,11 @@ int BrowserMain(const MainFunctionParams& parameters) {
     // method InitSharedInstance is ignored.
     const std::string loaded_locale =
         ResourceBundle::InitSharedInstance(locale);
+    if (loaded_locale.empty() &&
+        !parsed_command_line.HasSwitch(switches::kNoErrorDialogs)) {
+      ShowMissingLocaleMessageBox();
+      return chrome::RESULT_CODE_MISSING_DATA;
+    }
     CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
     g_browser_process->SetApplicationLocale(loaded_locale);
 

chrome/browser/browser_main.h

@@ -30,6 +30,12 @@ namespace net {
 class NetworkChangeNotifier;
 }
 
+namespace chrome_browser {
+// For use by ShowMissingLocaleMessageBox.
+extern const char kMissingLocaleDataTitle[];
+extern const char kMissingLocaleDataMessage[];
+}
+
 // BrowserMainParts:
 // This class contains different "stages" to be executed in |BrowserMain()|,
 // mostly initialization. This is made into a class rather than just functions
@@ -201,6 +207,9 @@ void RecordBreakpadStatusUMA(MetricsService* metrics);
 // present on the current platform.
 void WarnAboutMinimumSystemRequirements();
 
+// Displays a warning message that we can't find any locale data files.
+void ShowMissingLocaleMessageBox();
+
 // Records the time from our process' startup to the present time in
 // the UMA histogram |metric_name|.
 void RecordBrowserStartupTime();

chrome/browser/browser_main_gtk.cc

@@ -179,6 +179,22 @@ void WarnAboutMinimumSystemRequirements() {
   // Nothing to warn about on GTK right now.
 }
 
+void ShowMissingLocaleMessageBox() {
+  GtkWidget* dialog = gtk_message_dialog_new(
+      NULL,
+      static_cast<GtkDialogFlags>(0),
+      GTK_MESSAGE_ERROR,
+      GTK_BUTTONS_CLOSE,
+      "%s",
+      chrome_browser::kMissingLocaleDataMessage);
+
+  gtk_window_set_title(GTK_WINDOW(dialog),
+                       chrome_browser::kMissingLocaleDataTitle);
+
+  gtk_dialog_run(GTK_DIALOG(dialog));
+  gtk_widget_destroy(dialog);
+}
+
 void RecordBrowserStartupTime() {
   // Not implemented on GTK for now.
 }

chrome/browser/browser_main_mac.mm

@@ -45,6 +45,10 @@ void WarnAboutMinimumSystemRequirements() {
   // Nothing to check for on Mac right now.
 }
 
+void ShowMissingLocaleMessageBox() {
+  // Not called on Mac because we load the locale files differently.
+}
+
 // From browser_main_win.h, stubs until we figure out the right thing...
 
 int DoUninstallTasks(bool chrome_still_running) {

chrome/browser/browser_main_win.cc

@@ -83,6 +83,12 @@ void WarnAboutMinimumSystemRequirements() {
   }
 }
 
+void ShowMissingLocaleMessageBox() {
+  ui::MessageBox(NULL, ASCIIToUTF16(chrome_browser::kMissingLocaleDataMessage),
+                 ASCIIToUTF16(chrome_browser::kMissingLocaleDataTitle),
+                 MB_OK | MB_ICONERROR | MB_TOPMOST);
+}
+
 void RecordBrowserStartupTime() {
   // Calculate the time that has elapsed from our own process creation.
   FILETIME creation_time = {};