Cleanup: Better constify some strings in chrome/browser/{chromeos,extensions}.

chrome/browser/extensions/api/web_request/web_request_api_unittest.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 <map>
 #include <queue>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 678 matching lines @@
   EXPECT_EQ(i, ipc_sender_.sent_end());
 }
 
 TEST_F(ExtensionWebRequestTest, NoAccessRequestBodyData) {
   // We verify that URLRequest body is NOT accessible to OnBeforeRequest
   // listeners when the type of the request is different from POST or PUT, or
   // when the request body is empty. 3 requests are fired, without upload data,
   // a POST, PUT and GET request. For none of them the "requestBody" object
   // property should be present in the details passed to the onBeforeRequest
   // event listener.
-  const char* kMethods[] = { "POST", "PUT", "GET" };
+  const char* const kMethods[] = { "POST", "PUT", "GET" };
 
   // Set up a dummy extension name.
   const std::string kEventName(web_request::OnBeforeRequest::kEventName);
   ExtensionWebRequestEventRouter::RequestFilter filter;
   const std::string extension_id("1");
   int extra_info_spec = 0;
   ASSERT_TRUE(GenerateInfoSpec("blocking,requestBody", &extra_info_spec));
   base::WeakPtrFactory<TestIPCSender> ipc_sender_factory(&ipc_sender_);
 
   // Subscribe to OnBeforeRequest with requestBody requirement.
@@ skipping 1515 matching lines @@
   EXPECT_TRUE(credentials_set);
   EXPECT_FALSE(auth3.Empty());
   EXPECT_EQ(username, auth1.username());
   EXPECT_EQ(password, auth1.password());
   EXPECT_EQ(1u, warning_set.size());
   EXPECT_TRUE(HasWarning(warning_set, "extid2"));
   EXPECT_EQ(3u, capturing_net_log.GetSize());
 }
 
 }  // namespace extensions