Revert r12998 - it broke some media/mime-related layout tests.

chrome/common/extensions/api/extension_api.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/common/extensions/api/extension_api.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 250 matching lines @@
 }
 
 bool ExtensionAPI::IsPrivileged(const std::string& full_name) {
   std::string api_name;
   std::string child_name;
 
   {
     std::vector<std::string> split;
     base::SplitString(full_name, '.', &split);
     std::reverse(split.begin(), split.end());
-    CHECK(!split.empty());  // |full_name| was empty or only whitespace.
 
     api_name = split.back();
     split.pop_back();
     if (api_name == "experimental") {
-      CHECK(!split.empty());  // |full_name| was "experimental" alone.
       api_name += "." + split.back();
       split.pop_back();
     }
 
     // This only really works properly if split.size() == 1, however:
     //  - if it's empty, it's ok to leave child_name empty; presumably there's
     //    no functions or events with empty names.
     //  - if it's > 1, we can just do our best.
     if (split.size() > 0)
       child_name = split[0];
@@ skipping 172 matching lines @@
   }
 }
 
 void ExtensionAPI::LoadAllSchemas() {
   while (unloaded_schemas_.size()) {
     LoadSchema(unloaded_schemas_.begin()->second);
   }
 }
 
 }  // namespace extensions