Move ash/wm's DialogFrameView to ui/views/window; etc.

Move ash/wm's DialogFrameView to ui/views/window; etc.

Move ash/wm/dialog_frame_view.[h|cc] to ui/views/window/.
Move DialogFrameView to views namespace; export; cleanup.

Expose static DialogDelegate::UseNewStyle() for commandline flag.
OVERRIDE DialogDelegate::CreateNonClientFrameView to use DialogFrameView with flag.
OVERRIDE DialogDelegateView::GetContentsView to return |this|.
(nix redundant GetContentsView() OVERRIDEs from subclasses)
Cleanup DialogClientView ctor; encapsulate StyleParams struct.

Rewrite WidgetExample; nix transparency, add dialog widget, consolidate.

BUG=166075
TEST=views_examples WidgetExample changes with --enabled-new-dialog-style
R=sky@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=173993

[msw, 2012-12-19 03:38:30]

Hey Scott, please take a look; thanks!
The change is a smaller than it looks :)

[sky, 2012-12-19 15:55:54]

LGTM

https://codereview.chromium.org/11571023/diff/17062/ui/views/window/dialog_de...
File ui/views/window/dialog_delegate.h (right):

https://codereview.chromium.org/11571023/diff/17062/ui/views/window/dialog_de...
ui/views/window/dialog_delegate.h:32: static bool UseNewStyle();
constructor/destructor before other methods.

[msw, 2012-12-19 17:07:32]

Done; I also inlined Get*Params into WidgetExample::ButtonPressed and updated
some comments; landing.

https://codereview.chromium.org/11571023/diff/17062/ui/views/window/dialog_de...
File ui/views/window/dialog_delegate.h (right):

https://codereview.chromium.org/11571023/diff/17062/ui/views/window/dialog_de...
ui/views/window/dialog_delegate.h:32: static bool UseNewStyle();
On 2012/12/19 15:55:54, sky wrote:
> constructor/destructor before other methods.

Done.

[commit-bot: I haz the power, 2012-12-19 17:07:47]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/msw@chromium.org/11571023/15002

[commit-bot: I haz the power, 2012-12-19 21:41:41]

Change committed as 173993