Add BlimpView to a Chrome tab when Blimp is enabled.

blimp/client/core/contents/blimp_contents_manager.cc

Index: blimp/client/core/contents/blimp_contents_manager.cc
diff --git a/blimp/client/core/contents/blimp_contents_manager.cc b/blimp/client/core/contents/blimp_contents_manager.cc
index e93a018e574ce3eb0f6430315bade477052fe9d1..726eba84d9cf28a558dc4444e92502869d5a191f 100644
--- a/blimp/client/core/contents/blimp_contents_manager.cc
+++ b/blimp/client/core/contents/blimp_contents_manager.cc
@@ -55,12 +55,13 @@ BlimpContentsManager::BlimpContentsManager(
 
 BlimpContentsManager::~BlimpContentsManager() {}
 
-std::unique_ptr<BlimpContentsImpl> BlimpContentsManager::CreateBlimpContents() {
+std::unique_ptr<BlimpContentsImpl> BlimpContentsManager::CreateBlimpContents(
+    gfx::NativeWindow window) {
   int id = CreateBlimpContentsId();
 
   std::unique_ptr<BlimpContentsImpl> new_contents =
-      base::MakeUnique<BlimpContentsImpl>(id, ime_feature_, navigation_feature_,
-                                          tab_control_feature_);
+      base::MakeUnique<BlimpContentsImpl>(
+          id, window, ime_feature_, navigation_feature_, tab_control_feature_);
 
   // Create an observer entry for the contents.
   std::unique_ptr<BlimpContentsDeletionObserver> observer =