Tied up BlimpNavigationController to NavigationFeature

blimp/client/public/contents/blimp_contents.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BLIMP_CLIENT_PUBLIC_CONTENTS_BLIMP_CONTENTS_H_
 #define BLIMP_CLIENT_PUBLIC_CONTENTS_BLIMP_CONTENTS_H_
 
 #include "base/macros.h"
 #include "base/supports_user_data.h"
 #include "url/gurl.h"
 
 namespace blimp {
 namespace client {
 
 class BlimpContentsObserver;
 class BlimpNavigationController;
 
-// BlimpContents is the core class in //blimp/client/core. It renders web pages
-// from an engine in a rectangular area.
-// It enables callers to control the blimp engine through the use of the
-// navigation controller.
+// BlimpContents is the core class in //blimp/client which is responsible for

[Kevin M, 2016/08/03 16:55:16]

This is nice!

You can remove "in //blimp/client" because that detail is well-established by
the file path.

+// rendering web pages in a rectangular area. The interaction with between the
+// client and engine is encapsulated behind this interface through the use of
+// the navigation controller. Each BlimpContents has exactly one
+// BlimpNavigationController which can be used to load URLs, navigate
+// backwards/forward etc. See blimp_navigation_controller.h for more details.
 class BlimpContents : public base::SupportsUserData {
  public:
   // Retrives the navigation controller that controls all navigation related
   // to this BlimpContents.
   virtual BlimpNavigationController& GetNavigationController() = 0;
 
   // Enables adding and removing observers to this BlimpContents.
   virtual void AddObserver(BlimpContentsObserver* observer) = 0;
   virtual void RemoveObserver(BlimpContentsObserver* observer) = 0;
 
  protected:
   BlimpContents() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BlimpContents);
 };
 
 }  // namespace client
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_PUBLIC_CONTENTS_BLIMP_CONTENTS_H_