in the injected bundle
https://bugs.webkit.org/show_bug.cgi?id=116334

Reviewed by Alexey Proskuryakov.

Source/WebKit2:

Add shouldNotifyOnFormChanges and didAssociateFormControls to the WKBundlePageFormClient.

* WebProcess/InjectedBundle/API/c/WKBundlePage.h:
Add the new callbacks as part of version 2 of the WKBundlePageFormClient.

* WebProcess/InjectedBundle/InjectedBundlePageFormClient.cpp:
(WebKit::InjectedBundlePageFormClient::didAssociateFormControls):
Pass the message along to the client if the client has a handler.
(WebKit::InjectedBundlePageFormClient::shouldNotifyOnFormChanges):
Ditto.
* WebProcess/InjectedBundle/InjectedBundlePageFormClient.h:

* WebProcess/WebCoreSupport/WebChromeClient.cpp:
(WebKit::WebChromeClient::didAssociateFormControls):
Tell the injected bundle form client for the page.
(WebKit::WebChromeClient::shouldNotifyOnFormChanges):
Ditto.
* WebProcess/WebCoreSupport/WebChromeClient.h:

Tools:

Add tests for the new callbacks.

* TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj:
Add DidAssociateFormControls/_Bundle.cpp and associate-form-controls.html

* TestWebKitAPI/Tests/WebKit2/DidAssociateFormControls.cpp: Added.
(TestWebKitAPI::nullJavaScriptCallback):
A "null" callback to handle the fact that WKPageRunJavaScriptInMainFrame cannot handle null
being passed in for the callback.
(TestWebKitAPI::didReceiveMessageFromInjectedBundle):
After receiving the message that didAssociateFormControls callback was invoked from adding
the form in the onload handler, tell the page to add a password field to the form, which
should also invoke didAssociateFormControls callback.
(TestWebKitAPI::setInjectedBundleClient):
Register to receive messages.
(TestWebKitAPI::TEST):
Load associate-form-controls.html and wait until the didAssociateFormControls callback has
been invoked for both adding the form and for adding a password field to the form.

* TestWebKitAPI/Tests/WebKit2/DidAssociateFormControls_Bundle.cpp: Added.
(TestWebKitAPI::shouldNotifyOnFormChanges):
Return true so the didAssociateFormControls callback is invoked.
(TestWebKitAPI::didAssociateFormControls):
Tell the UI process.
(TestWebKitAPI::DidAssociateFormControlsTest::DidAssociateFormControlsTest):
(TestWebKitAPI::DidAssociateFormControlsTest::didCreatePage):
Register for the shouldNotifyOnFormChanges and didAssociateFormControls callbacks.

* TestWebKitAPI/Tests/WebKit2/associate-form-controls.html: Added.
Add a form in response to the onload event. Add a button that will add the password field
for manual testing.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@150441 268f45cc-cd09-0410-ab3c-d52691b4dbfc