Send port-closed notification when a frame with ports unloads.

Also add onLoad and onUnload chrome Event to our bindings, so we can add
listeners to these events without needing a DOM.  These don't hook into the
window "unload" event, so we no longer prevent Chrome's sudden termination of
tabs on shutdown.

BUG=12686
TEST=no
Review URL: http://codereview.chromium.org/125280

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18765 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 23 insertions, 0 deletions

diff --git a/webkit/glue/webframe.h b/webkit/glue/webframe.h
index 1789bfb..faa98bd 100644
--- a/webkit/glue/webframe.h
+++ b/webkit/glue/webframe.h
@@ -191,6 +191,13 @@ class WebFrame {
   // Returns the top-most frame in the frame hierarchy containing this frame.
   virtual WebFrame* GetTop() const = 0;
 
+  // Returns the first child frame of this frame, or NULL if it has no children.
+  virtual WebFrame* GetFirstChild() const = 0;
+
+  // Returns the next sibling frame of this frame, or NULL if there are no more
+  // siblings.
+  virtual WebFrame* GetNextSibling() const = 0;
+
   // Returns the child frame with the given xpath.
   // The document of this frame is used as the context node.
   // The xpath may need a recursive traversal if non-trivial
diff --git a/webkit/glue/webframe_impl.cc b/webkit/glue/webframe_impl.cc
index 24d1e4b..c8c50ef 100644
--- a/webkit/glue/webframe_impl.cc
+++ b/webkit/glue/webframe_impl.cc
@@ -683,6 +683,20 @@ WebFrame* WebFrameImpl::GetTop() const {
   return NULL;
 }
 
+WebFrame* WebFrameImpl::GetFirstChild() const {
+  if (frame_ && frame_->tree()->firstChild())
+    return FromFrame(frame_->tree()->firstChild());
+
+  return NULL;
+}
+
+WebFrame* WebFrameImpl::GetNextSibling() const {
+  if (frame_ && frame_->tree()->nextSibling())
+    return FromFrame(frame_->tree()->nextSibling());
+
+  return NULL;
+}
+
 WebFrame* WebFrameImpl::GetChildFrame(const std::wstring& xpath) const {
   // xpath string can represent a frame deep down the tree (across multiple
   // frame DOMs).
diff --git a/webkit/glue/webframe_impl.h b/webkit/glue/webframe_impl.h
index 6db3aa0..5ddfdea 100644
--- a/webkit/glue/webframe_impl.h
+++ b/webkit/glue/webframe_impl.h
@@ -106,6 +106,8 @@ class WebFrameImpl : public WebFrame, public base::RefCounted<WebFrameImpl> {
   virtual WebFrame* GetOpener() const;
   virtual WebFrame* GetParent() const;
   virtual WebFrame* GetTop() const;
+  virtual WebFrame* GetFirstChild() const;
+  virtual WebFrame* GetNextSibling() const;
   virtual WebFrame* GetChildFrame(const std::wstring& xpath) const;
   virtual WebView* GetView() const;
   virtual void GetForms(std::vector<WebKit::WebForm>* forms) const;