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

ui/gl/gl_context_android.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_context.h"
-
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/sys_info.h"
-#include "ui/gl/gl_bindings.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_surface.h"
-
-namespace gl {
-
-namespace {
-
-// Used to render into an already current context+surface,
-// that we do not have ownership of (draw callback).
-// TODO(boliu): Make this inherit from GLContextEGL.
-class GLNonOwnedContext : public GLContextReal {
- public:
-  GLNonOwnedContext(GLShareGroup* share_group);
-
-  // Implement GLContext.
-  bool Initialize(GLSurface* compatible_surface,
-                  GpuPreference gpu_preference) override;
-  bool MakeCurrent(GLSurface* surface) override;
-  void ReleaseCurrent(GLSurface* surface) override {}
-  bool IsCurrent(GLSurface* surface) override { return true; }
-  void* GetHandle() override { return nullptr; }
-  void OnSetSwapInterval(int interval) override {}
-  std::string GetExtensions() override;
-
- protected:
-  ~GLNonOwnedContext() override {}
-
- private:
-  EGLDisplay display_;
-
-  DISALLOW_COPY_AND_ASSIGN(GLNonOwnedContext);
-};
-
-GLNonOwnedContext::GLNonOwnedContext(GLShareGroup* share_group)
-  : GLContextReal(share_group), display_(nullptr) {}
-
-bool GLNonOwnedContext::Initialize(GLSurface* compatible_surface,
-                        GpuPreference gpu_preference) {
-  display_ = eglGetDisplay(EGL_DEFAULT_DISPLAY);
-  return true;
-}
-
-bool GLNonOwnedContext::MakeCurrent(GLSurface* surface) {
-  SetCurrent(surface);
-  SetRealGLApi();
-  return true;
-}
-
-std::string GLNonOwnedContext::GetExtensions() {
-  const char* extensions = eglQueryString(display_, EGL_EXTENSIONS);
-  if (!extensions)
-    return GLContext::GetExtensions();
-
-  return GLContext::GetExtensions() + " " + extensions;
-}
-
-}  // anonymous namespace
-
-// static
-scoped_refptr<GLContext> GLContext::CreateGLContext(
-    GLShareGroup* share_group,
-    GLSurface* compatible_surface,
-    GpuPreference gpu_preference) {
-  scoped_refptr<GLContext> context;
-  switch (GetGLImplementation()) {
-    case kGLImplementationMockGL:
-      return scoped_refptr<GLContext>(new GLContextStub(share_group));
-    case kGLImplementationOSMesaGL:
-      context = new GLContextOSMesa(share_group);
-      break;
-    default:
-      if (compatible_surface->GetHandle())
-        context = new GLContextEGL(share_group);
-      else
-        context = new GLNonOwnedContext(share_group);
-      break;
-  }
-
-  if (!context->Initialize(compatible_surface, gpu_preference))
-    return nullptr;
-
-  return context;
-}
-
-}