Implement forwarding of search queries for metro mode

Implement forwarding of search queries for metro mode

If chrome is the default browser, launch from the search charm does not
use the delegate_execute so if desktop chrome is running, metro chrome
needs to forward the search string and quickly quite

The source of complexity here is that to form the full url, chrome needs
to access the profile which cannot be done from the metro chrome since
the desktop chrome has the profile locked.

Instead we leveage the kMetroNavigationAndSearchMessage from the singleton
code.

BUG=141032
TEST= see bug
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=152818

[cpu_(ooo_6.6-7.5), 2012-08-20 21:29:10]

Brett, changes in base. Iyengar: all.

[ananta, 2012-08-20 21:40:48]

http://codereview.chromium.org/10824387/diff/1/chrome/browser/ui/views/frame/...
File chrome/browser/ui/views/frame/browser_frame_win.cc (right):

http://codereview.chromium.org/10824387/diff/1/chrome/browser/ui/views/frame/...
chrome/browser/ui/views/frame/browser_frame_win.cc:509: wchar_t atom[128] = {0};
Instead of hardcoding the atom array size, perhaps we could pass the size in
wparam?

[brettw, 2012-08-20 22:03:13]

LGTM rubberstamp for base, leaving real review for Ananta.

[cpu_(ooo_6.6-7.5), 2012-08-21 18:28:35]

Ananta, look again at the singleton part. I harcoded the url for the time being.

[ananta, 2012-08-22 20:58:45]

lgtm

http://codereview.chromium.org/10824387/diff/13002/chrome/browser/process_sin...
File chrome/browser/process_singleton_win.cc (right):

http://codereview.chromium.org/10824387/diff/13002/chrome/browser/process_sin...
chrome/browser/process_singleton_win.cc:123: BOOL CALLBACK TopWindowFinder(HWND
hwnd, LPARAM result) {
This function is not used anymore. Please delete it.