[WIP] Pass the single_process parameter to Ozone's initialization functions

ui/aura/env.h

 // Copyright (c) 2012 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 UI_AURA_ENV_H_
 #define UI_AURA_ENV_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 17 matching lines @@
 class EnvObserver;
 class InputStateLookup;
 class Window;
 class WindowTreeHost;
 
 // A singleton object that tracks general state within Aura.
 class AURA_EXPORT Env : public ui::EventTarget, public base::SupportsUserData {
  public:
   ~Env() override;
 
-  static std::unique_ptr<Env> CreateInstance();
+  static std::unique_ptr<Env> CreateInstance(bool running_inside_mus = false,

[rjkroege, 2016/09/12 20:39:12]

Why are you plumbing this?

[fwang, 2016/09/13 13:49:19]

This is not essential here, but currently ui/aura/env.cc seems to have a hacky
function RunningInsideMus() and it seems cleaner to determine this info on the
content side instead. Similarly, in_process_gpu and the mojo connector seem more
easily determined on the content side (although if I follow how the sequence is
initialized, the latter does not seem available yet when CreateInstance is
called).

+                                             bool in_process_gpu = false);
   static Env* GetInstance();
   static Env* GetInstanceDontCreate();
 
   void AddObserver(EnvObserver* observer);
   void RemoveObserver(EnvObserver* observer);
 
   int mouse_button_flags() const { return mouse_button_flags_; }
   void set_mouse_button_flags(int mouse_button_flags) {
     mouse_button_flags_ = mouse_button_flags;
   }
@@ skipping 17 matching lines @@
   }
   ui::ContextFactory* context_factory() { return context_factory_; }
 
  private:
   friend class test::EnvTestHelper;
   friend class Window;
   friend class WindowTreeHost;
 
   Env();
 
-  void Init();
+  void Init(bool running_inside_mus, bool single_process);
 
   // Called by the Window when it is initialized. Notifies observers.
   void NotifyWindowInitialized(Window* window);
 
   // Called by the WindowTreeHost when it is initialized. Notifies observers.
   void NotifyHostInitialized(WindowTreeHost* host);
 
   // Invoked by WindowTreeHost when it is activated. Notifies observers.
   void NotifyHostActivated(WindowTreeHost* host);
 
@@ skipping 14 matching lines @@
   std::unique_ptr<ui::PlatformEventSource> event_source_;
 
   ui::ContextFactory* context_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Env);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ENV_H_