<rdar://problem/8158561> Missing plug-in indicator should have a pressed state

Reviewed by Jon Honeycutt, Adam Roben, and Darin Adler.

Test: plugins/clicking-missing-plugin-fires-delegate.html

* html/HTMLPlugInElement.cpp:
(WebCore::HTMLPlugInElement::HTMLPlugInElement): Initialize m_isCapturingMouseEvents.
(WebCore::HTMLPlugInElement::detach): If we're still capturing when getting detached, clear the capturing node on the EventHandler.
(WebCore::HTMLPlugInElement::defaultEventHandler): Call handleMissingPluginIndicatorEvent when the missing plugin indicator is showing.
* html/HTMLPlugInElement.h:
(WebCore::HTMLPlugInElement::isCapturingMouseEvents):
(WebCore::HTMLPlugInElement::setIsCapturingMouseEvents):
* page/ChromeClient.h:
(WebCore::ChromeClient::shouldMissingPluginMessageBeButton): Added default implementation.
* rendering/RenderEmbeddedObject.cpp:
(WebCore::replacementTextRoundedRectPressedColor):
(WebCore::RenderEmbeddedObject::RenderEmbeddedObject):
(WebCore::RenderEmbeddedObject::setMissingPluginIndicatorIsPressed): Added.  Causes a repaint when the state changes.
(WebCore::RenderEmbeddedObject::paintReplaced): Call getReplacementTextGeometry.
(WebCore::RenderEmbeddedObject::getReplacementTextGeometry): Factored this out so it can be used in paintReplaced and in isInMissingPluginIndicator.
(WebCore::RenderEmbeddedObject::isInMissingPluginIndicator): Hit test to see if the mouse event is in the missing plugin indicator.
(WebCore::RenderEmbeddedObject::handleMissingPluginIndicatorEvent): Capture mouse events as needed and track the pressed appearance.
* rendering/RenderEmbeddedObject.h:

WebKit/mac: Fix for https://bugs.webkit.org/show_bug.cgi?id=41721
<rdar://problem/8158561> Missing plug-in indicator should have a pressed state

Reviewed by Jon Honeycutt, Adam Roben, and Darin Adler.

Implement shouldMissingPluginMessageBeButton.

* WebCoreSupport/WebChromeClient.h:
* WebCoreSupport/WebChromeClient.mm:
(WebChromeClient::shouldMissingPluginMessageBeButton):

WebKit/win: Fix for https://bugs.webkit.org/show_bug.cgi?id=41721
<rdar://problem/8158561> Missing plug-in indicator should have a pressed state

Reviewed by Jon Honeycutt, Adam Roben, and Darin Adler.

Implement shouldMissingPluginMessageBeButton.

* WebCoreSupport/WebChromeClient.cpp: (WebChromeClient::shouldMissingPluginMessageBeButton):
* WebCoreSupport/WebChromeClient.h:

WebKitTools: Test infrastructure for https://bugs.webkit.org/show_bug.cgi?id=41721
<rdar://problem/8158561> Missing plug-in indicator should have a pressed state

Reviewed by Jon Honeycutt, Adam Roben, and Darin Adler.

Log when the missing plugin button is pressed.

* DumpRenderTree/mac/UIDelegate.mm:
(-[UIDelegate webView:didPressMissingPluginButton:]):
* DumpRenderTree/win/UIDelegate.cpp:
(UIDelegate::QueryInterface):
(UIDelegate::createWebViewWithRequest):
(UIDelegate::drawBackground):
(UIDelegate::decidePolicyForGeolocationRequest):
(UIDelegate::didPressMissingPluginButton):
* DumpRenderTree/win/UIDelegate.h:

LayoutTests: Test for https://bugs.webkit.org/show_bug.cgi?id=41721
<rdar://problem/8158561> Missing plug-in indicator should have a pressed state

Reviewed by Jon Honeycutt, Adam Roben, and Darin Adler.

* platform/gtk/Skipped:
* platform/qt/Skipped:
* plugins/clicking-missing-plugin-fires-delegate-expected.txt: Added.
* plugins/clicking-missing-plugin-fires-delegate.html: Added.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@62875 268f45cc-cd09-0410-ab3c-d52691b4dbfc