Update some uses of UTF conversions in chrome/browser to use the base:: namespace.

chrome/browser/apps/web_view_browsertest.cc

 // 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.
 
 #include "apps/ui/native_app_window.h"
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
 #include "chrome/browser/automation/automation_util.h"
@@ skipping 431 matching lines @@
       *persistent_partition_contents2 = source6->GetWebContents();
     }
     if (persistent_partition_contents3) {
       *persistent_partition_contents3 = source7->GetWebContents();
     }
   }
 
   void ExecuteScriptWaitForTitle(content::WebContents* web_contents,
                                  const char* script,
                                  const char* title) {
-    base::string16 expected_title(ASCIIToUTF16(title));
-    base::string16 error_title(ASCIIToUTF16("error"));
+    base::string16 expected_title(base::ASCIIToUTF16(title));
+    base::string16 error_title(base::ASCIIToUTF16("error"));
 
     content::TitleWatcher title_watcher(web_contents, expected_title);
     title_watcher.AlsoWaitForTitle(error_title);
     EXPECT_TRUE(content::ExecuteScript(web_contents, script));
     EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
   }
 
   // Handles |request| by serving a redirect response.
   static scoped_ptr<net::test_server::HttpResponse> RedirectResponseHandler(
       const std::string& path,
@@ skipping 1081 matching lines @@
   ASSERT_TRUE(StartEmbeddedTestServer());
   content::WebContents* guest_web_contents = LoadGuest(
       "/extensions/platform_apps/web_view/speech/guest.html",
       "web_view/speech");
   ASSERT_TRUE(guest_web_contents);
 
   // Click on the guest (center of the WebContents), the guest is rendered in a
   // way that this will trigger clicking on speech recognition input mic.
   SimulateMouseClick(guest_web_contents, 0, blink::WebMouseEvent::ButtonLeft);
 
-  base::string16 expected_title(ASCIIToUTF16("PASSED"));
-  base::string16 error_title(ASCIIToUTF16("FAILED"));
+  base::string16 expected_title(base::ASCIIToUTF16("PASSED"));
+  base::string16 error_title(base::ASCIIToUTF16("FAILED"));
   content::TitleWatcher title_watcher(guest_web_contents, expected_title);
   title_watcher.AlsoWaitForTitle(error_title);
   EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
 }
 
 // Flaky on Windows. http://crbug.com/303966
 #if defined(OS_WIN)
 #define MAYBE_TearDownTest DISABLED_TearDownTest
 #else
 #define MAYBE_TearDownTest TearDownTest
@@ skipping 314 matching lines @@
 INSTANTIATE_TEST_CASE_P(WithoutThreadedCompositor,
     WebViewCaptureTest,
     ::testing::Values(std::string(switches::kDisableThreadedCompositing)));
 
 // http://crbug.com/171744
 #if !defined(OS_MACOSX)
 INSTANTIATE_TEST_CASE_P(WithThreadedCompositor,
     WebViewCaptureTest,
     ::testing::Values(std::string(switches::kEnableThreadedCompositing)));
 #endif