Add TabControlFeature to BlimpClientContextImpl

blimp/client/core/contents/blimp_contents_manager_unittest.cc

Index: blimp/client/core/contents/blimp_contents_manager_unittest.cc
diff --git a/blimp/client/core/contents/blimp_contents_manager_unittest.cc b/blimp/client/core/contents/blimp_contents_manager_unittest.cc
index 422b77157ef9c49bbfd94dfc69fb02b1109ef2d3..7b3810e739e82d7a97638057afd9d748c23cd362 100644
--- a/blimp/client/core/contents/blimp_contents_manager_unittest.cc
+++ b/blimp/client/core/contents/blimp_contents_manager_unittest.cc
@@ -7,6 +7,7 @@
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "blimp/client/core/contents/blimp_contents_impl.h"
+#include "blimp/client/core/contents/tab_control_feature.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
@@ -22,7 +23,7 @@ TEST(BlimpContentsManagerUnittest, GetExistingBlimpContents) {
   BlimpContentsManager blimp_contents_manager;
 
   std::unique_ptr<BlimpContentsImpl> blimp_contents =
-      blimp_contents_manager.CreateBlimpContents();
+      blimp_contents_manager.CreateBlimpContents(nullptr);
   int id = blimp_contents->id();
   BlimpContentsImpl* existing_contents =
       blimp_contents_manager.GetBlimpContents(id);
@@ -43,7 +44,7 @@ TEST(BlimpContentsManagerUnittest, GetDestroyedBlimpContents) {
   int id;
 
   std::unique_ptr<BlimpContentsImpl> blimp_contents =
-      blimp_contents_manager.CreateBlimpContents();
+      blimp_contents_manager.CreateBlimpContents(nullptr);
   id = blimp_contents.get()->id();
   BlimpContentsImpl* existing_contents =
       blimp_contents_manager.GetBlimpContents(id);