Normalize chrome://foo/ trailing slashes, ChromeURLHostEquals comparison, RIP dead consts.

chrome/browser/ui/webui/web_ui_util.cc

Index: chrome/browser/ui/webui/web_ui_util.cc
diff --git a/chrome/browser/ui/webui/web_ui_util.cc b/chrome/browser/ui/webui/web_ui_util.cc
index ee854acfe214e0254f40afbf3765e3f5d3bce7da..b6f49b33c191f5be028829a0205fac852acbce27 100644
--- a/chrome/browser/ui/webui/web_ui_util.cc
+++ b/chrome/browser/ui/webui/web_ui_util.cc
@@ -7,6 +7,9 @@
 #include <vector>
 
 #include "base/base64.h"
+#include "base/string_util.h"
+#include "chrome/common/url_constants.h"
+#include "googleurl/src/gurl.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/codec/png_codec.h"
 
@@ -39,4 +42,10 @@ std::string GetImageDataUrlFromResource(int res) {
   return str_url;
 }
 
+bool ChromeURLHostEquals(const GURL& url, const char* host) {
+  return (url.SchemeIs(chrome::kChromeUIScheme) ||
+          url.SchemeIs(chrome::kAboutScheme)) &&
+         LowerCaseEqualsASCII(url.host(), host);
+}
+
 }  // namespace web_ui_util