Revert of Refactor views app list services to allow more code sharing

Revert of Refactor views app list services to allow more code sharing (https://codereview.chromium.org/225053004/)

Reason for revert:
failed compile on clang dbg.

Overriding method must be marked with OVERRIDE.
  virtual app_list::AppListView* MakeViewForCurrentProfile() {
Overriding method must be marked with OVERRIDE.
  virtual AppListControllerDelegate* GetControllerDelegateForCreate() {


Original issue's description:
> Refactor views app list services to allow more code sharing
> 
> To run the toolkit-views app launcher on Mac, it needs a new app list
> service + supporting classes. It's going to look a lot like the Linux
> one. This CL starts by sharing what can be shared between Windows and
> Linux, in preparation for using it on Mac as well.
> 
> It does this principally by:
> - Moving `app_list_shower` to `app_list_shower_views`, making it views-specific;
> - Adding AppListServiceViews, which Win/Linux (and soon Mac) inherit from;
> - Rearranging the delegation to eliminate some boilerplate.
> 
> Other changes:
> - Removed AppList container abstract interface (now just access AppListView);
> - Removed AppListFactory (now AppListShower::MakeViewForCurrentProfile());
> - Moved AppListControllerDelegateLinux to AppListControllerDelegateViews;
> - Most of AppListServiceLinux moves to AppListServiceViews;
> - Added AppListShowerDelegate and AppListShower given virtual method
> hooks to assist testability (previously AppListShower was given a NULL
> service/delegate in tests);
> - Positioning logic in AppListWin/AppListLinux made static/stateless;
> - Removes the `on_should_dismiss_` closure (now just dismiss via the service;
> - Big trim of AppListServiceWin and AppListServiceLinux - now these are
> just platform-specific stuff.
> 
> BUG=365977
> TEST=Just refactoring, nothing should change
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=267184

TBR=tapted@chromium.org,mgiuca@chromium.org
NOTREECHECKS=true
NOTRY=true

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=267191

[tapted, 2014-04-30 11:57:03]

Created Revert of Refactor views app list services to allow more code sharing

[commit-bot: I haz the power, 2014-04-30 11:57:13]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tapted@chromium.org/262643003/1

[commit-bot: I haz the power, 2014-04-30 11:57:14]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-04-30 11:57:15]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[tapted, 2014-04-30 12:04:49]

The CQ bit was checked by tapted@chromium.org

[commit-bot: I haz the power, 2014-04-30 12:04:56]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tapted@chromium.org/262643003/1

[commit-bot: I haz the power, 2014-04-30 12:05:40]

Change committed as 267191