Apply OwnPtr|PassOwnPtr to member variables and arguments in ContextFeatures.

Apply OwnPtr|PassOwnPtr to member variables and arguments in ContextFeatures.

WebViewImpl has used m_featureSwitchClient unnecessarily in order to pass it to provideContextFeaturesTo().
To remove it, we need to apply OwnPtr|PassOwnPtr to member variable and parameter types.

Additionally m_midiClientProxy should be removed because it wasn't removed in r170746.

BUG=N/A

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=170877

[jochen (gone - plz use gerrit), 2014-04-04 09:07:01]

also, what will delete the pointer?

https://codereview.chromium.org/224113006/diff/1/Source/web/WebViewImpl.cpp
File Source/web/WebViewImpl.cpp (right):

https://codereview.chromium.org/224113006/diff/1/Source/web/WebViewImpl.cpp#n...
Source/web/WebViewImpl.cpp:396: provideContextFeaturesTo(*m_page,
ContextFeaturesClientImpl::create().get());
won't this delete the client immediately?

[gyuyoung-inactive, 2014-04-04 09:51:10]

https://codereview.chromium.org/224113006/diff/1/Source/web/WebViewImpl.cpp
File Source/web/WebViewImpl.cpp (right):

https://codereview.chromium.org/224113006/diff/1/Source/web/WebViewImpl.cpp#n...
Source/web/WebViewImpl.cpp:396: provideContextFeaturesTo(*m_page,
ContextFeaturesClientImpl::create().get());
On 2014/04/04 09:07:01, jochen wrote:
> won't this delete the client immediately?

Yes, right. This patch won't delete the client instance. I apply
OwnPtr|PassOwnPtr to ContextFeatures class in order to delete the client
immediately.

[jochen (gone - plz use gerrit), 2014-04-04 10:29:09]

lgtm

[gyuyoung-inactive, 2014-04-04 13:17:59]

The CQ bit was checked by gyuyoung.kim@samsung.com

[commit-bot: I haz the power, 2014-04-04 13:18:02]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/gyuyoung.kim@samsung.com/224113006/20001

[commit-bot: I haz the power, 2014-04-04 16:06:23]

Change committed as 170877