Proper fix for accessibility in Windows 64 build.

Proper fix for accessibility in Windows 64 build.

The previous fix didn't handle all clients. How l_param is
sign-extended to 64-bits depends on the client, so we have
to handle both correct and incorrect conversion to 64-bits.

BUG=383240
TBR=jam,sky

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=279172

[jschuh, 2014-06-19 09:15:19]

https://codereview.chromium.org/347743002/diff/1/content/browser/renderer_hos...
File content/browser/renderer_host/legacy_render_widget_host_win.cc (right):

https://codereview.chromium.org/347743002/diff/1/content/browser/renderer_hos...
content/browser/renderer_host/legacy_render_widget_host_win.cc:139: DWORD obj_id
= static_cast<DWORD>(unsigned_l_param);
I'd just stack the casts like this (we do the same elsewhere):

DWORD obj_id = static_cast<DWORD>(static_cast<DWORD_PTR>(l_param));

https://codereview.chromium.org/347743002/diff/1/ui/views/win/hwnd_message_ha...
File ui/views/win/hwnd_message_handler.cc (right):

https://codereview.chromium.org/347743002/diff/1/ui/views/win/hwnd_message_ha...
ui/views/win/hwnd_message_handler.cc:1422: DWORD obj_id =
static_cast<DWORD>(unsigned_l_param);
Ditto.

[dmazzoni, 2014-06-23 06:35:25]

Done.

[jschuh, 2014-06-23 19:42:38]

lgtm

[commit-bot: I haz the power, 2014-06-23 19:44:14]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/dmazzoni@chromium.org/347743002/20001

[dmazzoni, 2014-06-23 19:49:51]

The CQ bit was unchecked by dmazzoni@chromium.org

[dmazzoni, 2014-06-23 19:50:48]

+jam, sky (TBR OWNERS review)

[dmazzoni, 2014-06-23 19:50:53]

The CQ bit was checked by dmazzoni@chromium.org

[commit-bot: I haz the power, 2014-06-23 19:52:22]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/dmazzoni@chromium.org/347743002/20001

[commit-bot: I haz the power, 2014-06-23 20:39:03]

Change committed as 279172