Revert "Revert 83100 - Remove weird dependency on extensions from webui.Re-plumb extension request messages in a more sane way.Before, each RVH had ProcessWebUIMessage(), which wasserving as a manual way of plumbing both WebUI andextension messages to the right place, even though onlya few RVHD responded to either message.Instead of this, we now just teach more of the stack howto handle IPC messages in general, and delegate them upthrough the stack, giving each layer a chance to handlethem if it knows how.The result is simpler and smaller:179 insertions(+), 252 deletions(-)BUG=80311Review URL: http://codereview.chromium.org/6901021"

This reverts commit 643b280cedd9f0b76948686f39f50f295aba362f.

TBR=mpcomplete@chromium.org

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@83168 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 1 deletions

diff --git a/chrome/browser/extensions/extension_message_handler.h b/chrome/browser/extensions/extension_message_handler.h
index 3a5c050..0ba4940 100644
--- a/chrome/browser/extensions/extension_message_handler.h
+++ b/chrome/browser/extensions/extension_message_handler.h
@@ -14,6 +14,12 @@ struct ExtensionHostMsg_DomMessage_Params;
 // Filters and dispatches extension-related IPC messages that arrive from
 // renderers. There is one of these objects for each RenderViewHost in Chrome.
 // Contrast this with ExtensionTabHelper, which is only created for TabContents.
+//
+// TODO(aa): Handling of content script messaging should be able to move to EFD
+// once there is an EFD for every RVHD where extension code can run. Then we
+// could eliminate this class. Right now, we don't end up with an EFD for tab
+// contents unless that tab contents is hosting chrome-extension:// URLs. That
+// still leaves content scripts. See also: crbug.com/80307.
 class ExtensionMessageHandler : public RenderViewHostObserver {
  public:
   // |sender| is guaranteed to outlive this object.
@@ -26,7 +32,6 @@ class ExtensionMessageHandler : public RenderViewHostObserver {
  private:
   // Message handlers.
   void OnPostMessage(int port_id, const std::string& message);
-  void OnRequest(const ExtensionHostMsg_DomMessage_Params& params);
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionMessageHandler);
 };