Move GLSurface creation from //ui/gl to //ui/gl/init.

ui/gl/init/gl_factory_ozone.cc

 // Copyright 2016 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/init/gl_factory.h"
 
 #include "base/logging.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_context_egl.h"
 #include "ui/gl/gl_context_osmesa.h"
 #include "ui/gl/gl_context_stub.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_share_group.h"
 #include "ui/gl/gl_surface.h"
+#include "ui/gl/gl_surface_egl.h"
+#include "ui/gl/gl_surface_osmesa.h"
+#include "ui/gl/gl_surface_ozone.h"
+#include "ui/gl/gl_surface_stub.h"
+#include "ui/ozone/public/ozone_platform.h"
+#include "ui/ozone/public/surface_factory_ozone.h"
+#include "ui/ozone/public/surface_ozone_egl.h"
 
 namespace gl {
 namespace init {
 
 scoped_refptr<GLContext> CreateGLContext(GLShareGroup* share_group,
                                          GLSurface* compatible_surface,
                                          GpuPreference gpu_preference) {
   TRACE_EVENT0("gpu", "gl::init::CreateGLContext");
   switch (GetGLImplementation()) {
     case kGLImplementationMockGL:
       return scoped_refptr<GLContext>(new GLContextStub(share_group));
     case kGLImplementationOSMesaGL:
       return InitializeGLContext(new GLContextOSMesa(share_group),
                                  compatible_surface, gpu_preference);
     case kGLImplementationEGLGLES2:
       return InitializeGLContext(new GLContextEGL(share_group),
                                  compatible_surface, gpu_preference);
 
     default:
       NOTREACHED();
       return nullptr;
   }
 }
 
+scoped_refptr<GLSurface> CreateViewGLSurface(gfx::AcceleratedWidget window) {
+  TRACE_EVENT0("gpu", "gl::init::CreateViewGLSurface");
+  switch (GetGLImplementation()) {
+    case kGLImplementationOSMesaGL:
+      return InitializeGLSurface(new GLSurfaceOSMesaHeadless());
+    case kGLImplementationEGLGLES2: {
+      DCHECK_NE(window, gfx::kNullAcceleratedWidget);
+      scoped_refptr<GLSurface> surface;
+      if (GLSurfaceEGL::IsEGLSurfacelessContextSupported())
+        surface = CreateViewGLSurfaceOzoneSurfacelessSurfaceImpl(window);
+      if (!surface)
+        surface = CreateViewGLSurfaceOzone(window);
+      return surface;
+    }
+    case kGLImplementationMockGL:
+      return InitializeGLSurface(new GLSurfaceStub());
+    default:
+      NOTREACHED();
+      return nullptr;
+  }
+}
+
+scoped_refptr<GLSurface> CreateSurfacelessViewGLSurface(
+    gfx::AcceleratedWidget window) {
+  TRACE_EVENT0("gpu", "gl::init::CreateSurfacelessViewGLSurface");
+  if (GetGLImplementation() == kGLImplementationEGLGLES2 &&
+      window != gfx::kNullAcceleratedWidget &&
+      GLSurfaceEGL::IsEGLSurfacelessContextSupported()) {
+    return CreateViewGLSurfaceOzoneSurfaceless(window);
+  }
+  return nullptr;
+}
+
+scoped_refptr<GLSurface> CreateOffscreenGLSurface(const gfx::Size& size) {
+  TRACE_EVENT0("gpu", "gl::init::CreateOffscreenGLSurface");
+  switch (GetGLImplementation()) {
+    case kGLImplementationOSMesaGL:
+      return InitializeGLSurface(
+          new GLSurfaceOSMesa(GLSurface::SURFACE_OSMESA_BGRA, size));
+    case kGLImplementationEGLGLES2:
+      if (GLSurfaceEGL::IsEGLSurfacelessContextSupported() &&
+          (size.width() == 0 && size.height() == 0)) {
+        return InitializeGLSurface(new SurfacelessEGL(size));
+      } else {
+        return InitializeGLSurface(new PbufferGLSurfaceEGL(size));
+      }
+    case kGLImplementationMockGL:
+      return new GLSurfaceStub;
+    default:
+      NOTREACHED();
+      return nullptr;
+  }
+}
+
 }  // namespace init
 }  // namespace gl