Fix regression that stopped properly restoring focus to tab contents....

Fix regression that stopped properly restoring focus to tab contents.
The bug in r51262 was that native_tab_contents_container_win overrides
RequestFocus, so it can't be *reliably* focused just using SetFocus.

This is a simple, straightforward fix that should be merged for M6.

Afterwards, I think a better solution for the dev channel would be to get rid
of the hacky RequestFocus overrides and add a View::HasNativeFocus method
so that FocusManager can tell when it thinks a view already has focus, but the
native focus might need to be set again. Thoughts?

BUG=48917
BUG=49061
TEST=none


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=53471

[sky, 2010-07-21 15:44:39]

LGTM

http://codereview.chromium.org/3013023/diff/1/2
File views/focus/focus_manager.cc (right):

http://codereview.chromium.org/3013023/diff/1/2#newcode365
views/focus/focus_manager.cc:365: if (!view->IsFocusable() &&
view->IsAccessibilityFocusable()) {
I just landed a cl that changes these method names. You'll want
IsFocusableInRootView and IsAccessbilityFocusableInRootView.