gpu: Upgrade to new ANGLE Platform Display init.

ui/gl/gl_surface_egl.h

Index: ui/gl/gl_surface_egl.h
diff --git a/ui/gl/gl_surface_egl.h b/ui/gl/gl_surface_egl.h
index 21669d74bb7f25fed815618c829620832494d650..614a78403c5e971fad00d04ac99b298a52f1b98d 100644
--- a/ui/gl/gl_surface_egl.h
+++ b/ui/gl/gl_surface_egl.h
@@ -34,6 +34,7 @@ class GL_EXPORT GLSurfaceEGL : public GLSurface {
 
   static bool InitializeOneOff();
   static EGLDisplay GetHardwareDisplay();
+  static EGLDisplay InitializeDisplay();
   static EGLNativeDisplayType GetNativeDisplay();
 
   // These aren't particularly tied to surfaces, but since we already
@@ -48,11 +49,6 @@ class GL_EXPORT GLSurfaceEGL : public GLSurface {
   ~GLSurfaceEGL() override;
 
  private:
-#if defined(OS_WIN)
-  friend struct DriverEGL;
-  static EGLDisplay GetPlatformDisplay(EGLNativeDisplayType native_display);
-#endif
-
   DISALLOW_COPY_AND_ASSIGN(GLSurfaceEGL);
 };