Componentize the bad clock blocking page

chrome/browser/interstitials/chrome_controller_client.cc

Index: chrome/browser/interstitials/chrome_controller_client.cc
diff --git a/chrome/browser/interstitials/chrome_controller_client.cc b/chrome/browser/interstitials/chrome_controller_client.cc
index 01c1be72a86d3e965b9ec9ff26b8a847c440de42..c39e2a5476359c35794ff3db1dcd8e219db99050 100644
--- a/chrome/browser/interstitials/chrome_controller_client.cc
+++ b/chrome/browser/interstitials/chrome_controller_client.cc
@@ -4,21 +4,162 @@
 
 #include "chrome/browser/interstitials/chrome_controller_client.h"
 
+#include "base/bind.h"
+#include "base/command_line.h"
+#include "base/files/file_util.h"
 #include "base/prefs/pref_service.h"
+#include "base/process/launch.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/interstitial_page.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/referrer.h"
 
+#if defined(OS_ANDROID)
+#include "chrome/browser/android/intent_helper.h"
+#endif
+
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/ui/chrome_pages.h"
+#include "chrome/common/url_constants.h"
+#include "chrome/grit/generated_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+#endif
+
+#if defined(OS_WIN)
+#include "base/base_paths_win.h"
+#include "base/path_service.h"
+#include "base/strings/string16.h"
+#include "base/win/windows_version.h"
+#endif
+
 using content::Referrer;
 
+namespace {
+
+void LaunchDateAndTimeSettingsOnFile() {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::FILE);
+// The code for each OS is completely separate, in order to avoid bugs like
+// https://crbug.com/430877 .
+#if defined(OS_ANDROID)
+  chrome::android::OpenDateAndTimeSettings();
+
+#elif defined(OS_CHROMEOS)
+  std::string sub_page =
+      std::string(chrome::kSearchSubPage) + "#" +
+      l10n_util::GetStringUTF8(IDS_OPTIONS_SETTINGS_SECTION_TITLE_DATETIME);
+  chrome::ShowSettingsSubPageForProfile(ProfileManager::GetActiveUserProfile(),
+                                        sub_page);
+
+#elif defined(OS_IOS)
+  // TODO(blundell): Remove this once iOS has its own version of this class.
+  // iOS does not have a way to launch the date and time settings.
+  NOTREACHED();
+
+#elif defined(OS_LINUX)
+  struct ClockCommand {
+    const char* pathname;
+    const char* argument;
+  };
+  static const ClockCommand kClockCommands[] = {
+      // Unity
+      {"/usr/bin/unity-control-center", "datetime"},
+      // GNOME
+      //
+      // NOTE: On old Ubuntu, naming control panels doesn't work, so it
+      // opens the overview. This will have to be good enough.
+      {"/usr/bin/gnome-control-center", "datetime"},
+      {"/usr/local/bin/gnome-control-center", "datetime"},
+      {"/opt/bin/gnome-control-center", "datetime"},
+      // KDE
+      {"/usr/bin/kcmshell4", "clock"},
+      {"/usr/local/bin/kcmshell4", "clock"},
+      {"/opt/bin/kcmshell4", "clock"},
+  };
+
+  base::CommandLine command(base::FilePath(""));
+  for (const ClockCommand& cmd : kClockCommands) {
+    base::FilePath pathname(cmd.pathname);
+    if (base::PathExists(pathname)) {
+      command.SetProgram(pathname);
+      command.AppendArg(cmd.argument);
+      break;
+    }
+  }
+  if (command.GetProgram().empty()) {
+    // Alas, there is nothing we can do.
+    return;
+  }
+
+  base::LaunchOptions options;
+  options.wait = false;
+  options.allow_new_privs = true;
+  base::LaunchProcess(command, options);
+
+#elif defined(OS_MACOSX)
+  base::CommandLine command(base::FilePath("/usr/bin/open"));
+  command.AppendArg("/System/Library/PreferencePanes/DateAndTime.prefPane");
+
+  base::LaunchOptions options;
+  options.wait = false;
+  base::LaunchProcess(command, options);
+
+#elif defined(OS_WIN)
+  base::FilePath path;
+  PathService::Get(base::DIR_SYSTEM, &path);
+  static const base::char16 kControlPanelExe[] = L"control.exe";
+  path = path.Append(base::string16(kControlPanelExe));
+  base::CommandLine command(path);
+  command.AppendArg(std::string("/name"));
+  command.AppendArg(std::string("Microsoft.DateAndTime"));
+
+  base::LaunchOptions options;
+  options.wait = false;
+  base::LaunchProcess(command, options);
+
+#else
+  NOTREACHED();
+
+#endif
+  // Don't add code here! (See the comment at the beginning of the function.)
+}
+
+}  // namespace
+
 ChromeControllerClient::ChromeControllerClient(
     content::WebContents* web_contents)
-    : web_contents_(web_contents) {}
+    : web_contents_(web_contents), interstitial_page_(nullptr) {}
 
 ChromeControllerClient::~ChromeControllerClient() {}
 
+void ChromeControllerClient::set_interstitial_page(
+    content::InterstitialPage* interstitial_page) {
+  interstitial_page_ = interstitial_page;
+}
+
+bool ChromeControllerClient::CanLaunchDateAndTimeSettings() {
+#if defined(OS_ANDROID) || defined(OS_CHROMEOS) || defined(OS_LINUX) || \
+    defined(OS_MACOSX) || defined(OS_WIN)
+  return true;
+#else
+  return false;
+#endif
+}
+
+void ChromeControllerClient::LaunchDateAndTimeSettings() {
+  content::BrowserThread::PostTask(
+      content::BrowserThread::FILE, FROM_HERE,
+      base::Bind(&LaunchDateAndTimeSettingsOnFile));
+}
+
+void ChromeControllerClient::GoBack() {
+  DCHECK(interstitial_page_);
+  interstitial_page_->DontProceed();
+}
+
 void ChromeControllerClient::OpenUrlInCurrentTab(const GURL& url) {
   content::OpenURLParams params(url, Referrer(), CURRENT_TAB,
                                 ui::PAGE_TRANSITION_LINK, false);