Migrate accessibility from RenderView to RenderFrame.

content/browser/renderer_host/legacy_render_widget_host_win.cc

Index: content/browser/renderer_host/legacy_render_widget_host_win.cc
diff --git a/content/browser/renderer_host/legacy_render_widget_host_win.cc b/content/browser/renderer_host/legacy_render_widget_host_win.cc
index 9c2e1a2e512ccf646dec9ce48388b4e5b44a3e6b..db8ca80c86957e292ce9188142f342b0fc8ad42b 100644
--- a/content/browser/renderer_host/legacy_render_widget_host_win.cc
+++ b/content/browser/renderer_host/legacy_render_widget_host_win.cc
@@ -70,8 +70,10 @@ HWND LegacyRenderWidgetHostHWND::GetParent() {
   return ::GetParent(hwnd());
 }
 
-void LegacyRenderWidgetHostHWND::OnManagerDeleted() {
-  manager_ = NULL;
+void LegacyRenderWidgetHostHWND::OnManagerDeleted(
+    content::BrowserAccessibilityManagerWin* manager) {
+  if (manager_ == manager)

[David Tseng, 2014/07/14 19:08:02]

Ok; I see why you needed manager to be passed in here.

I'm just not entirely clear on the ownership relationship here. It seems like
maybe BAM should own LRWHW.

[dmazzoni, 2014/07/15 07:55:04]

Yeah, it used to - and then LRWHW ended up being used by RWHVA for other
purposes and that messed up the lifecycle. The change I pointed to earlier will
clean this up.

+    manager_ = NULL;
 }
 
 void LegacyRenderWidgetHostHWND::Show() {