Fix fullscreen media control position issue when switching orientation

Fix fullscreen media control position issue when switching orientation

Currently we force page scale factor to 1.0 in fullscreen mode (whether it is
a video or not). The assumption was broken when switching orientation. Adding
extra check in screen resize code to make sure the constraint is enforced.

R=aelias,qinmin
BUG=376408
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=175018

[aelias_OOO_until_Jul13, 2014-05-28 23:45:54]

https://codereview.chromium.org/308513002/diff/1/Source/web/WebViewImpl.cpp
File Source/web/WebViewImpl.cpp (right):

https://codereview.chromium.org/308513002/diff/1/Source/web/WebViewImpl.cpp#n...
Source/web/WebViewImpl.cpp:1630: setPageScaleFactor(1.0f, IntPoint());
Why is this line needed?

[trchen, 2014-05-29 00:02:12]

https://codereview.chromium.org/308513002/diff/1/Source/web/WebViewImpl.cpp
File Source/web/WebViewImpl.cpp (right):

https://codereview.chromium.org/308513002/diff/1/Source/web/WebViewImpl.cpp#n...
Source/web/WebViewImpl.cpp:1630: setPageScaleFactor(1.0f, IntPoint());
On 2014/05/28 23:45:55, aelias wrote:
> Why is this line needed?

Maybe not. Just tried without this line. No adverse effect was observed.

[aelias_OOO_until_Jul13, 2014-05-29 00:09:37]

lgtm

[trchen, 2014-05-29 00:10:24]

The CQ bit was checked by trchen@chromium.org

[commit-bot: I haz the power, 2014-05-29 00:10:46]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/trchen@chromium.org/308513002/20001

[commit-bot: I haz the power, 2014-05-29 01:22:05]

Change committed as 175018