https://bugs.webkit.org/show_bug.cgi?id=87337

Patch by Chris Guan <chris.guan@torchmobile.com.cn> on 2012-05-31
Reviewed by Antonio Gomes.

Move "fullScreenVideoCapable" into webpagePrivate to make code
clean for "fullScreenForElement/Node" of cromeClientBlackberry,
All Video checks and code path selections are in webpagePrivate now.
For some UX and secure reasons, we could not apply fullscreen capacity
for all elements, So we use client's fullscreenStart/Stop only for
those video elements and those elements containing video tags.

* Api/WebPage.cpp:
(BlackBerry::WebKit::WebPagePrivate::webContext):
(BlackBerry::WebKit::WebPage::notifyFullScreenVideoExited):
(WebKit):
(BlackBerry::WebKit::containsVideoTags):
(BlackBerry::WebKit::WebPagePrivate::enterFullScreenForElement):
(BlackBerry::WebKit::WebPagePrivate::exitFullScreenForElement):
* Api/WebPageClient.h:
* Api/WebPage_p.h:
(WebCore):
(WebPagePrivate):
* WebCoreSupport/ChromeClientBlackBerry.cpp:
(WebCore::ChromeClientBlackBerry::enterFullScreenForElement):
(WebCore::ChromeClientBlackBerry::exitFullScreenForElement):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@119119 268f45cc-cd09-0410-ab3c-d52691b4dbfc