Move EndsWith to base namespace.

components/plugins/renderer/mobile_youtube_plugin.cc

Index: components/plugins/renderer/mobile_youtube_plugin.cc
diff --git a/components/plugins/renderer/mobile_youtube_plugin.cc b/components/plugins/renderer/mobile_youtube_plugin.cc
index 9745a0a138e37371b137f3d8f14b42199e3fba15..af24a2b3dcfc3c4d546085f0aaacd0b6a872940b 100644
--- a/components/plugins/renderer/mobile_youtube_plugin.cc
+++ b/components/plugins/renderer/mobile_youtube_plugin.cc
@@ -89,8 +89,8 @@ MobileYouTubePlugin::~MobileYouTubePlugin() {}
 bool MobileYouTubePlugin::IsYouTubeURL(const GURL& url,
                                        const std::string& mime_type) {
   std::string host = url.host();
-  bool is_youtube = EndsWith(host, "youtube.com", true) ||
-                    EndsWith(host, "youtube-nocookie.com", true);
+  bool is_youtube = base::EndsWith(host, "youtube.com", true) ||
+                    base::EndsWith(host, "youtube-nocookie.com", true);
 
   return is_youtube && IsValidYouTubeVideo(url.path()) &&
          base::LowerCaseEqualsASCII(mime_type,