Move JavascriptTestObserver from chrome to content.

content/public/test/javascript_test_observer.cc

Index: content/public/test/javascript_test_observer.cc
diff --git a/chrome/test/base/javascript_test_observer.cc b/content/public/test/javascript_test_observer.cc
similarity index 95%
rename from chrome/test/base/javascript_test_observer.cc
rename to content/public/test/javascript_test_observer.cc
index d010b93dcfae86216108c1135e0b2ea953e3ccfd..6689047eb0ef9f4c7cf8e98a6e77016571f1162f 100644
--- a/chrome/test/base/javascript_test_observer.cc
+++ b/content/public/test/javascript_test_observer.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/test/base/javascript_test_observer.h"
+#include "content/public/test/javascript_test_observer.h"
 
 #include "content/public/browser/dom_operation_notification_details.h"
 #include "content/public/browser/notification_types.h"
@@ -10,6 +10,8 @@
 #include "content/public/browser/web_contents.h"
 #include "content/public/test/test_utils.h"
 
+namespace content {
+
 TestMessageHandler::TestMessageHandler() : ok_(true) {
 }
 
@@ -88,3 +90,5 @@ void JavascriptTestObserver::EndTest() {
     base::MessageLoopForUI::current()->Quit();
   }
 }
+
+}  // namespace content