Use OwnPtr instead of deleteAllValues for requests in PluginView
https://bugs.webkit.org/show_bug.cgi?id=115731

Reviewed by Sam Weinig.

* plugins/PluginView.cpp:
(WebCore::PluginView::~PluginView): Removed the call to deleteAllValues.
(WebCore::PluginView::requestTimerFired): Use release to remove an OwnPtr
from m_requests rather than an explicit delete. Also use !isEmpty instead
of size > 0.
(WebCore::PluginView::scheduleRequest): Changed argument type to PassOwnPtr.
(WebCore::PluginView::load): Use adoptPtr to call scheduleRequest.

* plugins/PluginView.h: Changed argument type of scheduleRequest to
PassOwnPtr, and m_requests to a Vector<OwnPtr>.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149709 268f45cc-cd09-0410-ab3c-d52691b4dbfc