Remove trailing '\' to avoid build failure on gcc 4.x toolchain.

chrome/browser/extensions/chrome_url_request_util.h

Index: chrome/browser/extensions/chrome_url_request_util.h
diff --git a/chrome/browser/extensions/chrome_url_request_util.h b/chrome/browser/extensions/chrome_url_request_util.h
index 384538acbb28bab0d6e148cafb3cc3fd109b0450..edaefc4fccf576479973db592600a8c6a3d68fe9 100644
--- a/chrome/browser/extensions/chrome_url_request_util.h
+++ b/chrome/browser/extensions/chrome_url_request_util.h
@@ -26,7 +26,7 @@ class InfoMap;
 namespace chrome_url_request_util {
 
 // Sets allowed=true to allow a chrome-extension:// resource request coming from
-// renderer A to access a resource in an extension running in renderer B.\
+// renderer A to access a resource in an extension running in renderer B.
 // Returns false when it couldn't determine if the resource is allowed or not
 bool AllowCrossRendererResourceLoad(net::URLRequest* request,
                                           bool is_incognito,