Implement web app shortcuts natively per issue 25528

- Implement a CreateApplicationShortcutView similar to the current Gears-based one;
- Add a few profile prefs to persist user's last checked shortcut locations
- Implement a web_app::CreateShortcut that stores icon under "<profile>/Web Applications"
  in a similar layout as gears (i.e. <host>/<scheme_port>/<web_app_title>.ico) and calls
  file_util code to creates shortcut on Windows;
- Add Win7 taskbar pin/unpin support function to file_util;
- Update TabContents to replace gears with new code;

Note:
- Gears dialog is modaless but this one is a modal dialog.
- Gear's icon store is not migrated because gears icons
  could still be used by shortcuts created by gears and
  thus we could not delete them even after migration. And we
  are not using the local ico files in the dialog even if
  they exists.
- New CreateApplicationShortcutView is included when
  TOOLKIT_VIEW is defined. However on platforms other
  than Windows, the actual CreateShortCut code is not
  implemented. Right now it calls ShellIntegration's
  CreateDesktopShort if OS_LINUX is defined and
  NOTREACHED() for other platforms.

BUG=25528
TEST=Verify the new UI provides the same functionality as gears under XP/Vista and support pinning on Win 7.

Review URL: http://codereview.chromium.org/372012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@32165 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 8 insertions, 0 deletions

diff --git a/base/file_util.h b/base/file_util.h
index 782a6a2..c86e6e4 100644
--- a/base/file_util.h
+++ b/base/file_util.h
@@ -237,6 +237,14 @@ bool UpdateShortcutLink(const wchar_t *source, const wchar_t *destination,
                         const wchar_t *description, const wchar_t *icon,
                         int icon_index);
 
+// Pins a shortcut to the Windows 7 taskbar. The shortcut file must already
+// exist and be a shortcut that points to an executable.
+bool TaskbarPinShortcutLink(const wchar_t* shortcut);
+
+// Unpins a shortcut from the Windows 7 taskbar. The shortcut must exist and
+// already be pinned to the taskbar.
+bool TaskbarUnpinShortcutLink(const wchar_t* shortcut);
+
 // Return true if the given directory is empty
 bool IsDirectoryEmpty(const std::wstring& dir_path);