Refactor GL surface format handling

ui/gl/gl_surface_glx.cc

 // 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.
 
 #include "ui/gl/gl_surface_glx.h"
 
 extern "C" {
 #include <X11/Xlib.h>
 }
 #include <memory>
@@ skipping 495 matching lines @@
     : parent_window_(window),
       window_(0),
       glx_window_(0),
       config_(nullptr),
       visual_id_(CopyFromParent) {}
 
 GLXDrawable NativeViewGLSurfaceGLX::GetDrawableHandle() const {
   return glx_window_;
 }
 
-bool NativeViewGLSurfaceGLX::Initialize(GLSurface::Format format) {
+bool NativeViewGLSurfaceGLX::Initialize(GLSurfaceFormat format) {
   XWindowAttributes attributes;
   if (!XGetWindowAttributes(g_display, parent_window_, &attributes)) {
     LOG(ERROR) << "XGetWindowAttributes failed for window " << parent_window_
                << ".";
     return false;
   }
   size_ = gfx::Size(attributes.width, attributes.height);
   visual_id_ = XVisualIDFromVisual(attributes.visual);
   // Create a child window, with a CopyFromParent visual (to avoid inducing
   // extra blits in the driver), that we can resize exactly in Resize(),
@@ skipping 123 matching lines @@
 }
 
 UnmappedNativeViewGLSurfaceGLX::UnmappedNativeViewGLSurfaceGLX(
     const gfx::Size& size)
     : size_(size), config_(nullptr), window_(0), glx_window_(0) {
   // Ensure that we don't create a window with zero size.
   if (size_.GetArea() == 0)
     size_.SetSize(1, 1);
 }
 
-bool UnmappedNativeViewGLSurfaceGLX::Initialize(GLSurface::Format format) {
+bool UnmappedNativeViewGLSurfaceGLX::Initialize(GLSurfaceFormat format) {
   DCHECK(!window_);
 
   gfx::AcceleratedWidget parent_window = DefaultRootWindow(g_display);
 
   XSetWindowAttributes attrs;
   attrs.border_pixel = 0;
   attrs.colormap = g_colormap;
   window_ = XCreateWindow(g_display, parent_window, 0, 0, size_.width(),
                           size_.height(), 0, g_depth, InputOutput, g_visual,
                           CWBorderPixel | CWColormap, &attrs);
@@ skipping 40 matching lines @@
 
 unsigned long UnmappedNativeViewGLSurfaceGLX::GetCompatibilityKey() {
   return XVisualIDFromVisual(g_visual);
 }
 
 UnmappedNativeViewGLSurfaceGLX::~UnmappedNativeViewGLSurfaceGLX() {
   Destroy();
 }
 
 }  // namespace gl