Add support for edit commands in OOPIFs.

content/public/renderer/render_view.h

Index: content/public/renderer/render_view.h
diff --git a/content/public/renderer/render_view.h b/content/public/renderer/render_view.h
index 3cddd0ea68d587cc89d99c97ec5d8305e6e5808f..80c01ef56e9321c2a10ff46089de4a55569a1afe 100644
--- a/content/public/renderer/render_view.h
+++ b/content/public/renderer/render_view.h
@@ -108,6 +108,9 @@ class CONTENT_EXPORT RenderView : public IPC::Sender {
   virtual void Repaint(const gfx::Size& size) = 0;
 
   // Inject edit commands to be used for the next keyboard event.
+  // TODO(alexmos): Currently, these are used only by BlinkTestRunner.  They
+  // should be removed from RenderView and instead be plumbed through the
+  // target frame and WebFrameTestProxy.
   virtual void SetEditCommandForNextKeyEvent(const std::string& name,
                                              const std::string& value) = 0;
   virtual void ClearEditCommands() = 0;