Revert of Compute GpuDriverBugWorkarounds only one time in the GPU process

gpu/gles2_conform_support/egl/display.h

Index: gpu/gles2_conform_support/egl/display.h
diff --git a/gpu/gles2_conform_support/egl/display.h b/gpu/gles2_conform_support/egl/display.h
index 20821ee34fc383505f8aec5f18cd79977e3e6bfe..8ed12a4a131dc1f3eee0ee91ace2d6dfc3a1716c 100644
--- a/gpu/gles2_conform_support/egl/display.h
+++ b/gpu/gles2_conform_support/egl/display.h
@@ -15,7 +15,6 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
-#include "gpu/config/gpu_driver_bug_workarounds.h"
 
 namespace egl {
 
@@ -35,10 +34,6 @@
 
   // A function for windowless GTF tests.
   void SetNextCreateWindowSurfaceCreatesPBuffer(EGLint width, EGLint height);
-
-  const gpu::GpuDriverBugWorkarounds& gpu_driver_bug_workarounds() const {
-    return gpu_driver_bug_workarounds_;
-  }
 
   EGLBoolean Initialize(ThreadState* ts, EGLint* major, EGLint* minor);
   EGLBoolean Terminate(ThreadState* ts);
@@ -107,8 +102,6 @@
   EGLint window_surface_pbuffer_width_;
   EGLint window_surface_pbuffer_height_;
 
-  const gpu::GpuDriverBugWorkarounds gpu_driver_bug_workarounds_;
-
   DISALLOW_COPY_AND_ASSIGN(Display);
 };