DelegatedFrameHost should not allocate a new local surface id on frame eviction

content/browser/renderer_host/render_widget_host_view_aura_unittest.cc

Index: content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
index 8b36a472c5b08ed20c304744239e22b9c4963da4..60cb68949001a2b13a4c6bcd1a9211c03fbba60c 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
@@ -421,12 +421,10 @@ class FakeRenderWidgetHostViewAura : public RenderWidgetHostViewAura {
     return GetDelegatedFrameHost()->SurfaceIdForTesting();
   }
 
-  const cc::LocalSurfaceId& GetLocalSurfaceId() const {
-    return GetDelegatedFrameHost()->LocalSurfaceIdForTesting();
+  bool HasFrameData() const {
+    return GetDelegatedFrameHost()->HasFrameForTesting();
   }
 
-  bool HasFrameData() const { return GetLocalSurfaceId().is_valid(); }
-
   bool released_front_lock_active() const {
     return GetDelegatedFrameHost()->ReleasedFrontLockActiveForTesting();
   }