https://bugs.webkit.org/show_bug.cgi?id=122085

Reviewed by Anders Carlsson.

* html/HTMLMediaElement.h:
* loader/FrameLoader.cpp:
(WebCore::FrameLoader::completed):
* loader/FrameLoader.h:
* loader/SubresourceLoader.cpp:
(WebCore::SubresourceLoader::checkForHTTPStatusCodeError):
(WebCore::SubresourceLoader::didFinishLoading):
(WebCore::SubresourceLoader::didFail):
(WebCore::SubresourceLoader::willCancel):
* loader/SubresourceLoader.h:
Store the PageActivityAssertionToken as a std::unique_ptr.

* page/Page.cpp:
(WebCore::Page::Page):
Use createOwned and pass this by reference for the PageThrottler and PageConsole.
(WebCore::Page::~Page):
Remove unnecessary clearing of an OwnPtr that is about to be destroyed.
* page/Page.h:
Make m_pageThrottler const and return it as a reference.

* page/PageActivityAssertionToken.cpp:
(WebCore::PageActivityAssertionToken::PageActivityAssertionToken):
(WebCore::PageActivityAssertionToken::~PageActivityAssertionToken):
* page/PageActivityAssertionToken.h:
Take the PageThrottler by reference in the constructor. It is never null.

* page/PageConsole.cpp:
(WebCore::PageConsole::PageConsole):
(WebCore::PageConsole::~PageConsole):
(WebCore::PageConsole::addMessage):
* page/PageConsole.h:
Pass and store the Page as a reference and remove an extraneous null check. Remove
the create function.

* page/PageThrottler.cpp:
(WebCore::PageThrottler::PageThrottler):
(WebCore::PageThrottler::~PageThrottler):
(WebCore::PageThrottler::createActivityToken):
(WebCore::PageThrottler::throttlePage):
(WebCore::PageThrottler::unthrottlePage):
(WebCore::PageThrottler::addActivityToken):
(WebCore::PageThrottler::removeActivityToken):
* page/PageThrottler.h:
Pass and store the Page as a reference. Move the creation of PageActivityAssertionToken here
to aid encapsulation.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@156625 268f45cc-cd09-0410-ab3c-d52691b4dbfc