Reland of place string::find(prefix) == 0 pattern with base::StartsWith().

chrome/browser/ui/browser_navigator_browsertest.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/browser/ui/browser_navigator_browsertest.h"
 
 #include "base/command_line.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
@@ skipping 50 matching lines @@
 }
 
 // Converts long uber URLs ("chrome://chrome/foo/") to short (virtual) URLs
 // ("chrome://foo/"). This should be used to convert the return value of
 // WebContentsImpl::GetURL before comparison because it can return either the
 // real URL or the virtual URL.
 GURL ShortenUberURL(const GURL& url) {
   std::string url_string = url.spec();
   const std::string long_prefix = "chrome://chrome/";
   const std::string short_prefix = "chrome://";
-  if (url_string.find(long_prefix) != 0)
+  if (!base::StartsWith(url_string, long_prefix, base::CompareCase::SENSITIVE))
     return url;
   url_string.replace(0, long_prefix.length(), short_prefix);
   return GURL(url_string);
 }
 
 }  // namespace
 
 chrome::NavigateParams BrowserNavigatorTest::MakeNavigateParams() const {
   return MakeNavigateParams(browser());
 }
@@ skipping 1361 matching lines @@
   EXPECT_EQ(expected_title, params.target_contents->GetTitle());
   // GURL always keeps non-ASCII characters escaped, but check them anyways.
   EXPECT_EQ(GURL(expected_url).spec(), params.target_contents->GetURL().spec());
   // Check the omnibox text. It should have escaped RTL with unescaped text.
   LocationBar* location_bar = browser()->window()->GetLocationBar();
   OmniboxView* omnibox_view = location_bar->GetOmniboxView();
   EXPECT_EQ(base::UTF8ToUTF16(expected_url), omnibox_view->GetText());
 }
 
 }  // namespace