Provide UI for per-extension enabling/disabling of error collection.

extensions/browser/extension_error.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EXTENSIONS_BROWSER_EXTENSION_ERROR_H_
 #define EXTENSIONS_BROWSER_EXTENSION_ERROR_H_
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "extensions/common/stack_frame.h"
 #include "url/gurl.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace extensions {
 
 class ExtensionError {
  public:
   enum Type {
     MANIFEST_ERROR,
-    RUNTIME_ERROR
+    RUNTIME_ERROR,
+    NUM_ERROR_TYPES  // Put new values above this.
   };
 
   virtual ~ExtensionError();
 
   // Serializes the ExtensionError into JSON format.
   virtual scoped_ptr<base::DictionaryValue> ToValue() const;
 
   virtual std::string PrintForTest() const;
 
   // Return true if this error and |rhs| are considered equal, and should be
@@ skipping 126 matching lines @@
   // inspect the view later, if possible.
   int render_view_id_;
   int render_process_id_;
 
   DISALLOW_COPY_AND_ASSIGN(RuntimeError);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_ERROR_H_