Add a WebDocument::watchCssSelectors(selectors)

Source/web/FrameLoaderClientImpl.cpp

Index: Source/web/FrameLoaderClientImpl.cpp
diff --git a/Source/web/FrameLoaderClientImpl.cpp b/Source/web/FrameLoaderClientImpl.cpp
index 3c15247468f65c42466e2f33d5559005259ebdf2..786e67febc527a8bf6e22fab0b7ecd0fd8748125 100644
--- a/Source/web/FrameLoaderClientImpl.cpp
+++ b/Source/web/FrameLoaderClientImpl.cpp
@@ -542,6 +542,13 @@ void FrameLoaderClientImpl::didDispatchPingLoader(const KURL& url)
         m_webFrame->client()->didDispatchPingLoader(m_webFrame, url);
 }
 
+void FrameLoaderClientImpl::selectorMatchChanged(const Vector<String>& addedSelectors, const Vector<String>& removedSelectors)
+{
+    if (m_webFrame->client()) {

[esprehn, 2013/09/04 06:08:28]

no braces and we'd probably write it as:

if (Client* client = m_webFrame->client())
  client->...();

[Jeffrey Yasskin, 2013/09/12 22:09:59]

Done, but I haven't updated all of the other functions here to be consistent.

+        m_webFrame->client()->didMatchCSS(m_webFrame, WebVector<WebString>(addedSelectors), WebVector<WebString>(removedSelectors));
+    }
+}
+
 PassRefPtr<DocumentLoader> FrameLoaderClientImpl::createDocumentLoader(
     const ResourceRequest& request,
     const SubstituteData& data)