Revert of Move static GL binding initialization to //ui/gl/init.

ui/gl/init/gl_initializer_x11.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_initializer.h"
 
-#include "base/command_line.h"
 #include "base/logging.h"
-#include "base/path_service.h"
-#include "base/threading/thread_restrictions.h"
-#include "build/build_config.h"
-#include "ui/gl/gl_bindings.h"
-#include "ui/gl/gl_egl_api_implementation.h"
-#include "ui/gl/gl_gl_api_implementation.h"
-#include "ui/gl/gl_glx_api_implementation.h"
-#include "ui/gl/gl_implementation_osmesa.h"
-#include "ui/gl/gl_osmesa_api_implementation.h"
+#include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_surface_egl.h"
 #include "ui/gl/gl_surface_glx.h"
 #include "ui/gl/gl_surface_osmesa_x11.h"
-#include "ui/gl/gl_switches.h"
 
 namespace gl {
 namespace init {
 
-namespace {
-
-#if defined(OS_OPENBSD)
-const char kGLLibraryName[] = "libGL.so";
-#else
-const char kGLLibraryName[] = "libGL.so.1";
-#endif
-
-const char kGLESv2LibraryName[] = "libGLESv2.so.2";
-const char kEGLLibraryName[] = "libEGL.so.1";
-
-const char kGLESv2ANGLELibraryName[] = "libGLESv2.so";
-const char kEGLANGLELibraryName[] = "libEGL.so";
-
-bool InitializeStaticGLXInternal() {
-  base::NativeLibrary library = NULL;
-  const base::CommandLine* command_line =
-      base::CommandLine::ForCurrentProcess();
-
-  if (command_line->HasSwitch(switches::kTestGLLib))
-    library = LoadLibraryAndPrintError(
-        command_line->GetSwitchValueASCII(switches::kTestGLLib).c_str());
-
-  if (!library) {
-    library = LoadLibraryAndPrintError(kGLLibraryName);
-  }
-
-  if (!library)
-    return false;
-
-  GLGetProcAddressProc get_proc_address =
-      reinterpret_cast<GLGetProcAddressProc>(
-          base::GetFunctionPointerFromNativeLibrary(library,
-                                                    "glXGetProcAddress"));
-  if (!get_proc_address) {
-    LOG(ERROR) << "glxGetProcAddress not found.";
-    base::UnloadNativeLibrary(library);
-    return false;
-  }
-
-  SetGLGetProcAddressProc(get_proc_address);
-  AddGLNativeLibrary(library);
-  SetGLImplementation(kGLImplementationDesktopGL);
-
-  InitializeStaticGLBindingsGL();
-  InitializeStaticGLBindingsGLX();
-
-  return true;
-}
-
-bool InitializeStaticEGLInternal() {
-  base::FilePath glesv2_path(kGLESv2LibraryName);
-  base::FilePath egl_path(kEGLLibraryName);
-
-  const base::CommandLine* command_line =
-      base::CommandLine::ForCurrentProcess();
-  if (command_line->GetSwitchValueASCII(switches::kUseGL) ==
-      kGLImplementationANGLEName) {
-    base::FilePath module_path;
-    if (!PathService::Get(base::DIR_MODULE, &module_path))
-      return false;
-
-    glesv2_path = module_path.Append(kGLESv2ANGLELibraryName);
-    egl_path = module_path.Append(kEGLANGLELibraryName);
-  }
-
-  base::NativeLibrary gles_library = LoadLibraryAndPrintError(glesv2_path);
-  if (!gles_library)
-    return false;
-  base::NativeLibrary egl_library = LoadLibraryAndPrintError(egl_path);
-  if (!egl_library) {
-    base::UnloadNativeLibrary(gles_library);
-    return false;
-  }
-
-  GLGetProcAddressProc get_proc_address =
-      reinterpret_cast<GLGetProcAddressProc>(
-          base::GetFunctionPointerFromNativeLibrary(egl_library,
-                                                    "eglGetProcAddress"));
-  if (!get_proc_address) {
-    LOG(ERROR) << "eglGetProcAddress not found.";
-    base::UnloadNativeLibrary(egl_library);
-    base::UnloadNativeLibrary(gles_library);
-    return false;
-  }
-
-  SetGLGetProcAddressProc(get_proc_address);
-  AddGLNativeLibrary(egl_library);
-  AddGLNativeLibrary(gles_library);
-  SetGLImplementation(kGLImplementationEGLGLES2);
-
-  InitializeStaticGLBindingsGL();
-  InitializeStaticGLBindingsEGL();
-
-  return true;
-}
-
-}  // namespace
-
 bool InitializeGLOneOffPlatform() {
   switch (GetGLImplementation()) {
     case kGLImplementationDesktopGL:
       if (!GLSurfaceGLX::InitializeOneOff()) {
         LOG(ERROR) << "GLSurfaceGLX::InitializeOneOff failed.";
         return false;
       }
       return true;
     case kGLImplementationOSMesaGL:
       if (!GLSurfaceOSMesaX11::InitializeOneOff()) {
         LOG(ERROR) << "GLSurfaceOSMesaX11::InitializeOneOff failed.";
         return false;
       }
       return true;
     case kGLImplementationEGLGLES2:
       if (!GLSurfaceEGL::InitializeOneOff()) {
         LOG(ERROR) << "GLSurfaceEGL::InitializeOneOff failed.";
         return false;
       }
       return true;
     default:
       return true;
   }
 }
 
-bool InitializeStaticGLBindings(GLImplementation implementation) {
-  // Prevent reinitialization with a different implementation. Once the gpu
-  // unit tests have initialized with kGLImplementationMock, we don't want to
-  // later switch to another GL implementation.
-  DCHECK_EQ(kGLImplementationNone, GetGLImplementation());
-
-  // Allow the main thread or another to initialize these bindings
-  // after instituting restrictions on I/O. Going forward they will
-  // likely be used in the browser process on most platforms. The
-  // one-time initialization cost is small, between 2 and 5 ms.
-  base::ThreadRestrictions::ScopedAllowIO allow_io;
-
-  switch (implementation) {
-    case kGLImplementationOSMesaGL:
-      return InitializeStaticGLBindingsOSMesaGL();
-    case kGLImplementationDesktopGL:
-      return InitializeStaticGLXInternal();
-    case kGLImplementationEGLGLES2:
-      return InitializeStaticEGLInternal();
-    case kGLImplementationMockGL:
-      SetGLImplementation(kGLImplementationMockGL);
-      InitializeStaticGLBindingsGL();
-      return true;
-    default:
-      NOTREACHED();
-  }
-
-  return false;
-}
-
-void InitializeDebugGLBindings() {
-  InitializeDebugGLBindingsEGL();
-  InitializeDebugGLBindingsGL();
-  InitializeDebugGLBindingsGLX();
-  InitializeDebugGLBindingsOSMESA();
-}
-
-void ClearGLBindingsPlatform() {
-  ClearGLBindingsEGL();
-  ClearGLBindingsGL();
-  ClearGLBindingsGLX();
-  ClearGLBindingsOSMESA();
-}
-
 }  // namespace init
 }  // namespace gl