Add support for multi-line GlobalError messages to Views.

chrome/browser/ui/global_error/global_error_service_unittest.cc

Index: chrome/browser/ui/global_error/global_error_service_unittest.cc
diff --git a/chrome/browser/ui/global_error/global_error_service_unittest.cc b/chrome/browser/ui/global_error/global_error_service_unittest.cc
index 3691039341fa530050177b65f138107e453d9a7f..d49e52335c18ef15ae94d68e7e5a9f79f9cf5acb 100644
--- a/chrome/browser/ui/global_error/global_error_service_unittest.cc
+++ b/chrome/browser/ui/global_error/global_error_service_unittest.cc
@@ -43,9 +43,9 @@ class BaseError : public GlobalError {
     ADD_FAILURE();
     return string16();
   }
-  virtual string16 GetBubbleViewMessage() OVERRIDE {
+  virtual std::vector<string16> GetBubbleViewMessages() OVERRIDE {
     ADD_FAILURE();
-    return string16();
+    return std::vector<string16>();
   }
   virtual string16 GetBubbleViewAcceptButtonLabel() OVERRIDE {
     ADD_FAILURE();