Revert 258122 "gpu: Allow fences to check whether a flush has oc..."

trunk/src/ui/gl/gl_gl_api_implementation.h

Index: trunk/src/ui/gl/gl_gl_api_implementation.h
===================================================================
--- trunk/src/ui/gl/gl_gl_api_implementation.h	(revision 258964)
+++ trunk/src/ui/gl/gl_gl_api_implementation.h	(working copy)
@@ -41,7 +41,6 @@
   GLApiBase();
   virtual ~GLApiBase();
   void InitializeBase(DriverGL* driver);
-  void SignalFlush();
 
   DriverGL* driver_;
 };
@@ -52,10 +51,6 @@
   RealGLApi();
   virtual ~RealGLApi();
   void Initialize(DriverGL* driver);
-
- private:
-  virtual void glFinishFn() OVERRIDE;
-  virtual void glFlushFn() OVERRIDE;
 };
 
 // Inserts a TRACE for every GL call.
@@ -87,12 +82,10 @@
 
   void OnReleaseVirtuallyCurrent(GLContext* virtual_context);
 
-private:
   // Overridden functions from GLApiBase
   virtual const GLubyte* glGetStringFn(GLenum name) OVERRIDE;
-  virtual void glFinishFn() OVERRIDE;
-  virtual void glFlushFn() OVERRIDE;
 
+ private:
   // The real context we're running on.
   GLContext* real_context_;