Remove dead Connection members in ChildProcess subclasses (and their users)
https://bugs.webkit.org/show_bug.cgi?id=106347
<rdar://problem/12973955>

Reviewed by Alexey Proskuryakov.

This also fixes a crash when entering fullscreen with a plug-in.

* PluginProcess/PluginProcess.h:
Remove dead m_connection member.

* PluginProcess/mac/PluginProcessMac.mm:
(WebKit::PluginProcess::setModalWindowIsShowing):
(WebKit::PluginProcess::setFullscreenWindowIsShowing):
Replace use of m_connection, which is dead, with parentProcessConnection().

* SharedWorkerProcess/SharedWorkerProcess.h:
(SharedWorkerProcess):
Remove dead m_connection member.

* SharedWorkerProcess/SharedWorkerProcess.cpp:
(WebKit::SharedWorkerProcess::createWebProcessConnection):
Replace use of m_connection, which is dead, with parentProcessConnection().

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@139076 268f45cc-cd09-0410-ab3c-d52691b4dbfc
AX: PopUpButtons do not report that AXValueAttribute is supported
https://bugs.webkit.org/show_bug.cgi?id=106333

Reviewed by Ryosuke Niwa.

Source/WebCore: 

The Mac platform expects that AXPopUpButton's expose the AXValue attribute.

Test: platform/mac/accessibility/popup-button-exposes-axvalue.html

* accessibility/AccessibilityObject.h:
(WebCore::AccessibilityObject::isPopUpButton):
* accessibility/mac/WebAccessibilityObjectWrapper.mm:
(-[WebAccessibilityObjectWrapper additionalAccessibilityAttributeNames]):

LayoutTests: 

* platform/mac/accessibility/popup-button-exposes-axvalue-expected.txt: Added.
* platform/mac/accessibility/popup-button-exposes-axvalue.html: Added.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@139077 268f45cc-cd09-0410-ab3c-d52691b4dbfc