Remove GLFence::CreateWithoutFlush

ui/gl/gl_context.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_GL_GL_CONTEXT_H_
 #define UI_GL_GL_CONTEXT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 16 matching lines @@
  public:
   explicit GLContext(GLShareGroup* share_group);
 
   // Initializes the GL context to be compatible with the given surface. The GL
   // context can be made with other surface's of the same type. The compatible
   // surface is only needed for certain platforms like WGL, OSMesa and GLX. It
   // should be specific for all platforms though.
   virtual bool Initialize(
       GLSurface* compatible_surface, GpuPreference gpu_preference) = 0;
 
-  class FlushEvent : public base::RefCountedThreadSafe<FlushEvent> {
-    public:
-      bool IsSignaled();
-
-    private:
-      friend class base::RefCountedThreadSafe<FlushEvent>;
-      friend class GLContext;
-      FlushEvent();
-      virtual ~FlushEvent();
-      void Signal();
-
-      base::CancellationFlag flag_;
-  };
-
-  // Needs to be called with this context current. It will return a FlushEvent
-  // that is initially unsignaled, but will transition to signaled after the
-  // next glFlush() or glFinish() occurs in this context.
-  scoped_refptr<FlushEvent> SignalFlush();
-
   // Destroys the GL context.
   virtual void Destroy() = 0;
 
   // Makes the GL context and a surface current on the current thread.
   virtual bool MakeCurrent(GLSurface* surface) = 0;
 
   // Releases this GL context and surface as current on the current thread.
   virtual void ReleaseCurrent(GLSurface* surface) = 0;
 
   // Returns true if this context and surface is current. Pass a null surface
@@ skipping 70 matching lines @@
   // Notify this context that |virtual_context|, that was using us, is
   // being released or destroyed.
   void OnReleaseVirtuallyCurrent(GLContext* virtual_context);
 
   // Returns the GL version string. The context must be current.
   virtual std::string GetGLVersion();
 
   // Returns the GL renderer string. The context must be current.
   virtual std::string GetGLRenderer();
 
-  // Called when glFlush()/glFinish() is called with this context current.
-  void OnFlush();
-
  protected:
   virtual ~GLContext();
 
   // Will release the current context when going out of scope, unless canceled.
   class ScopedReleaseCurrent {
    public:
     ScopedReleaseCurrent();
     ~ScopedReleaseCurrent();
 
     void Cancel();
@@ skipping 20 matching lines @@
   friend class base::RefCounted<GLContext>;
 
   // For GetRealCurrent.
   friend class VirtualGLApi;
 
   scoped_refptr<GLShareGroup> share_group_;
   scoped_ptr<VirtualGLApi> virtual_gl_api_;
   scoped_ptr<GLStateRestorer> state_restorer_;
   scoped_ptr<GLVersionInfo> version_info_;
 
-  std::vector<scoped_refptr<FlushEvent> > flush_events_;
-
   int swap_interval_;
   bool force_swap_interval_zero_;
 
   DISALLOW_COPY_AND_ASSIGN(GLContext);
 };
 
 class GL_EXPORT GLContextReal : public GLContext {
  public:
   explicit GLContextReal(GLShareGroup* share_group);
 
  protected:
   ~GLContextReal() override;
 
   void SetCurrent(GLSurface* surface) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GLContextReal);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GL_GL_CONTEXT_H_