Add IPCs to check web copy/cut/paste for extensions with the appropriate permission bit.

chrome/browser/extensions/extension_host.cc

Index: chrome/browser/extensions/extension_host.cc
diff --git a/chrome/browser/extensions/extension_host.cc b/chrome/browser/extensions/extension_host.cc
index 6c23c6050e0229119ade4e75d674e28003933e74..bb476f86ed5ff8eca4aabba71ced76f3c07e92b9 100644
--- a/chrome/browser/extensions/extension_host.cc
+++ b/chrome/browser/extensions/extension_host.cc
@@ -538,12 +538,6 @@ WebPreferences ExtensionHost::GetWebkitPrefs() {
     webkit_prefs.accelerated_2d_canvas_enabled = false;
   }
 
-  // TODO(dcheng): incorporate this setting into kClipboardPermission check.
-  webkit_prefs.javascript_can_access_clipboard = true;
-
-  // TODO(dcheng): check kClipboardPermission instead once it's implemented.
-  if (extension_->HasApiPermission(Extension::kExperimentalPermission))
-    webkit_prefs.dom_paste_enabled = true;
   return webkit_prefs;
 }