Revert "[Extensions] Changt cl uploade ProcessManager to use RenderFrameHosts"

This reverts commit 93a2547e8519ce060379102a611d58f767c72ece.

BUG=

Review URL: https://codereview.chromium.org/1058183002

Cr-Commit-Position: refs/heads/master@{#323574}

1 files changed, 0 insertions, 7 deletions

diff --git a/extensions/browser/extension_web_contents_observer.h b/extensions/browser/extension_web_contents_observer.h
index 993a8fe..cd48560 100644
--- a/extensions/browser/extension_web_contents_observer.h
+++ b/extensions/browser/extension_web_contents_observer.h
@@ -42,13 +42,6 @@ class ExtensionWebContentsObserver : public content::WebContentsObserver {
 
   void RenderFrameCreated(content::RenderFrameHost* render_frame_host) override;
 
-  // Per the documentation in WebContentsObserver, these two methods are
-  // appropriate to track the set of current RenderFrameHosts.
-  // NOTE: FrameDeleted() != RenderFrameDeleted().
-  void FrameDeleted(content::RenderFrameHost* render_frame_host) override;
-  void RenderFrameHostChanged(content::RenderFrameHost* old_host,
-                              content::RenderFrameHost* new_host) override;
-
   // Returns the extension or app associated with a render view host. Returns
   // NULL if the render view host is not for a valid extension.
   const Extension* GetExtension(content::RenderViewHost* render_view_host);