[Blimp] Adds blimp engine browser test framework and LoadUrl test.

blimp/client/feature/navigation_feature_unittest.cc

Index: blimp/client/feature/navigation_feature_unittest.cc
diff --git a/blimp/client/feature/navigation_feature_unittest.cc b/blimp/client/feature/navigation_feature_unittest.cc
index 9d903d8af595b839f00a7f61d789791046126a77..8a5c0ba692a6496ef659852ae7ef437f3944248d 100644
--- a/blimp/client/feature/navigation_feature_unittest.cc
+++ b/blimp/client/feature/navigation_feature_unittest.cc
@@ -8,6 +8,7 @@
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
+#include "blimp/client/feature/mock_navigation_feature_delegate.h"
 #include "blimp/common/create_blimp_message.h"
 #include "blimp/common/proto/blimp_message.pb.h"
 #include "blimp/net/test_common.h"
@@ -23,17 +24,6 @@ using testing::_;
 namespace blimp {
 namespace client {
 
-class MockNavigationFeatureDelegate
-    : public NavigationFeature::NavigationFeatureDelegate {
- public:
-  // NavigationFeatureDelegate implementation.
-  MOCK_METHOD2(OnUrlChanged, void(int tab_id, const GURL& url));
-  MOCK_METHOD2(OnFaviconChanged, void(int tab_id, const SkBitmap& favicon));
-  MOCK_METHOD2(OnTitleChanged, void(int tab_id, const std::string& title));
-  MOCK_METHOD2(OnLoadingChanged, void(int tab_id, bool loading));
-  MOCK_METHOD2(OnPageLoadStatusUpdate, void(int tab_id, bool completed));
-};
-
 void SendMockNavigationStateChangedMessage(BlimpMessageProcessor* processor,
                                            int tab_id,
                                            const GURL* url,