New Task Manager - Phase 1.3.5: Implement Extension Task Providing

chrome/browser/extensions/chrome_extension_web_contents_observer.cc

Index: chrome/browser/extensions/chrome_extension_web_contents_observer.cc
diff --git a/chrome/browser/extensions/chrome_extension_web_contents_observer.cc b/chrome/browser/extensions/chrome_extension_web_contents_observer.cc
index b692dfbb0e01fcb1cc9de515061cfef4a3cda176..67272b728be1991a77dee55faa72723d60322c30 100644
--- a/chrome/browser/extensions/chrome_extension_web_contents_observer.cc
+++ b/chrome/browser/extensions/chrome_extension_web_contents_observer.cc
@@ -7,6 +7,7 @@
 #include "chrome/browser/extensions/error_console/error_console.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/window_controller.h"
+#include "chrome/browser/task_management/web_contents_tags.h"
 #include "chrome/common/extensions/chrome_extension_messages.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/render_frame_host.h"
@@ -84,6 +85,13 @@ void ChromeExtensionWebContentsObserver::InitializeRenderFrame(
     render_frame_host->Send(new ExtensionMsg_UpdateBrowserWindowId(
         render_frame_host->GetRoutingID(), controller->GetWindowId()));
   }
+
+  const Extension* extension = GetExtensionFromFrame(render_frame_host);
+  if (extension) {
+    // Make the extension show up in the task manager.
+    task_management::WebContentsTags::CreateForExtension(web_contents(),
+                                                         extension);

[afakhry, 2015/07/25 00:50:40]

Man, there must be a better place to do the tagging. Tagging here forced me to
have the condition that I don't like in WebContentsTags::CreateForExtension().

Other possible tagging places that are possibly covered by this one but they
might help us avoid potential collisions that result from tagging here:
1-
https://code.google.com/p/chromium/codesearch#chromium/src/extensions/browser...

2-
https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/ui/...

3-
https://code.google.com/p/chromium/codesearch#chromium/src/apps/custom_launch...

4-
https://code.google.com/p/chromium/codesearch#chromium/src/extensions/browser...

+  }
 }
 
 void ChromeExtensionWebContentsObserver::ReloadIfTerminated(