Add support for multi-line GlobalError messages to Views.

chrome/browser/ui/global_error/global_error_service_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/global_error/global_error_service.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/global_error/global_error.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 29 matching lines @@
     return 0;
   }
   virtual string16 GetBubbleViewTitle() OVERRIDE {
     ADD_FAILURE();
     return string16();
   }
   virtual string16 GetBubbleViewMessage() OVERRIDE {
     ADD_FAILURE();
     return string16();
   }
+  virtual std::vector<string16> GetBubbleViewMessages() OVERRIDE {
+    ADD_FAILURE();
+    return string16();
+  }
   virtual string16 GetBubbleViewAcceptButtonLabel() OVERRIDE {
     ADD_FAILURE();
     return string16();
   }
   virtual string16 GetBubbleViewCancelButtonLabel() OVERRIDE {
     ADD_FAILURE();
     return string16();
   }
   virtual void OnBubbleViewDidClose(Browser* browser) OVERRIDE {
     ADD_FAILURE();
@@ skipping 115 matching lines @@
   service.AddGlobalError(error3);
   EXPECT_EQ(error3, service.GetHighestSeverityGlobalErrorWithWrenchMenuItem());
 
   // Remove the highest-severity error.
   service.RemoveGlobalError(error3);
   delete error3;
 
   // Now error2 should be the next highest severity error.
   EXPECT_EQ(error2, service.GetHighestSeverityGlobalErrorWithWrenchMenuItem());
 }