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

chrome/browser/renderer_host/plugin_info_message_filter_unittest.cc

Index: chrome/browser/renderer_host/plugin_info_message_filter_unittest.cc
diff --git a/chrome/browser/renderer_host/plugin_info_message_filter_unittest.cc b/chrome/browser/renderer_host/plugin_info_message_filter_unittest.cc
index f13542e67f52ce3133ea06056f0869ad64f85855..c2227c8ffab224ed7713212ed6884e67aa5492e1 100644
--- a/chrome/browser/renderer_host/plugin_info_message_filter_unittest.cc
+++ b/chrome/browser/renderer_host/plugin_info_message_filter_unittest.cc
@@ -79,20 +79,20 @@ class PluginInfoMessageFilterTest : public ::testing::Test {
   }
 
   virtual void SetUp() OVERRIDE {
-    content::WebPluginInfo foo_plugin(ASCIIToUTF16("Foo Plug-in"),
+    content::WebPluginInfo foo_plugin(base::ASCIIToUTF16("Foo Plug-in"),
                                       foo_plugin_path_,
-                                      ASCIIToUTF16("1"),
-                                      ASCIIToUTF16("The Foo plug-in."));
+                                      base::ASCIIToUTF16("1"),
+                                      base::ASCIIToUTF16("The Foo plug-in."));
     content::WebPluginMimeType mime_type;
     mime_type.mime_type = "foo/bar";
     foo_plugin.mime_types.push_back(mime_type);
     PluginService::GetInstance()->Init();
     PluginService::GetInstance()->RegisterInternalPlugin(foo_plugin, false);
 
-    content::WebPluginInfo bar_plugin(ASCIIToUTF16("Bar Plug-in"),
+    content::WebPluginInfo bar_plugin(base::ASCIIToUTF16("Bar Plug-in"),
                                       bar_plugin_path_,
-                                      ASCIIToUTF16("1"),
-                                      ASCIIToUTF16("The Bar plug-in."));
+                                      base::ASCIIToUTF16("1"),
+                                      base::ASCIIToUTF16("The Bar plug-in."));
     mime_type.mime_type = "foo/bar";
     bar_plugin.mime_types.push_back(mime_type);
     PluginService::GetInstance()->RegisterInternalPlugin(bar_plugin, false);