Remove windows/mac/ios specific code from //ui

ui/gl/gl_implementation_mac.cc

Index: ui/gl/gl_implementation_mac.cc
diff --git a/ui/gl/gl_implementation_mac.cc b/ui/gl/gl_implementation_mac.cc
deleted file mode 100644
index d818f05e6f5341d4bc44217f395ae504af86f68b..0000000000000000000000000000000000000000
--- a/ui/gl/gl_implementation_mac.cc
+++ /dev/null
@@ -1,152 +0,0 @@
-// 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 "base/base_paths.h"
-#include "base/files/file_path.h"
-#include "base/logging.h"
-#include "base/mac/foundation_util.h"
-#include "base/native_library.h"
-#include "base/path_service.h"
-#include "base/threading/thread_restrictions.h"
-#include "ui/gl/gl_bindings.h"
-#include "ui/gl/gl_context_stub_with_extensions.h"
-#include "ui/gl/gl_gl_api_implementation.h"
-#include "ui/gl/gl_implementation.h"
-#include "ui/gl/gl_osmesa_api_implementation.h"
-
-namespace gfx {
-namespace {
-const char kOpenGLFrameworkPath[] =
-    "/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL";
-}  // namespace
-
-void GetAllowedGLImplementations(std::vector<GLImplementation>* impls) {
-  impls->push_back(kGLImplementationDesktopGL);
-  impls->push_back(kGLImplementationAppleGL);
-  impls->push_back(kGLImplementationOSMesaGL);
-}
-
-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: {
-      // osmesa.so is located in the build directory. This code path is only
-      // valid in a developer build environment.
-      base::FilePath exe_path;
-      if (!PathService::Get(base::FILE_EXE, &exe_path)) {
-        LOG(ERROR) << "PathService::Get failed.";
-        return false;
-      }
-      base::FilePath bundle_path = base::mac::GetAppBundlePath(exe_path);
-      // Some unit test targets depend on osmesa but aren't built as app
-      // bundles. In that case, the .so is next to the executable.
-      if (bundle_path.empty())
-        bundle_path = exe_path;
-      base::FilePath build_dir_path = bundle_path.DirName();
-      base::FilePath osmesa_path = build_dir_path.Append("osmesa.so");
-
-      // When using OSMesa, just use OSMesaGetProcAddress to find entry points.
-      base::NativeLibrary library = base::LoadNativeLibrary(osmesa_path, NULL);
-      if (!library) {
-        LOG(ERROR) << "osmesa.so not found at " << osmesa_path.value();
-        return false;
-      }
-
-      GLGetProcAddressProc get_proc_address =
-          reinterpret_cast<GLGetProcAddressProc>(
-              base::GetFunctionPointerFromNativeLibrary(
-                  library, "OSMesaGetProcAddress"));
-      if (!get_proc_address) {
-        LOG(ERROR) << "OSMesaGetProcAddress not found.";
-        base::UnloadNativeLibrary(library);
-        return false;
-      }
-
-      SetGLGetProcAddressProc(get_proc_address);
-      AddGLNativeLibrary(library);
-      SetGLImplementation(kGLImplementationOSMesaGL);
-
-      InitializeStaticGLBindingsGL();
-      InitializeStaticGLBindingsOSMESA();
-      break;
-    }
-    case kGLImplementationDesktopGL:
-    case kGLImplementationAppleGL: {
-      base::NativeLibrary library = base::LoadNativeLibrary(
-          base::FilePath(kOpenGLFrameworkPath), NULL);
-      if (!library) {
-        LOG(ERROR) << "OpenGL framework not found";
-        return false;
-      }
-
-      AddGLNativeLibrary(library);
-      SetGLImplementation(implementation);
-
-      InitializeStaticGLBindingsGL();
-      break;
-    }
-    case kGLImplementationMockGL: {
-      SetGLImplementation(kGLImplementationMockGL);
-      InitializeStaticGLBindingsGL();
-      break;
-    }
-    default:
-      return false;
-  }
-
-  return true;
-}
-
-bool InitializeDynamicGLBindings(GLImplementation implementation,
-    GLContext* context) {
-  switch (implementation) {
-    case kGLImplementationOSMesaGL:
-    case kGLImplementationDesktopGL:
-    case kGLImplementationAppleGL:
-      InitializeDynamicGLBindingsGL(context);
-      break;
-    case kGLImplementationMockGL:
-      if (!context) {
-        scoped_refptr<GLContextStubWithExtensions> mock_context(
-            new GLContextStubWithExtensions());
-        mock_context->SetGLVersionString("3.0");
-        InitializeDynamicGLBindingsGL(mock_context.get());
-      } else
-        InitializeDynamicGLBindingsGL(context);
-      break;
-    default:
-      return false;
-  }
-
-  return true;
-}
-
-void InitializeDebugGLBindings() {
-  InitializeDebugGLBindingsGL();
-  InitializeDebugGLBindingsOSMESA();
-}
-
-void ClearGLBindings() {
-  ClearGLBindingsGL();
-  ClearGLBindingsOSMESA();
-  SetGLImplementation(kGLImplementationNone);
-
-  UnloadGLNativeLibraries();
-}
-
-bool GetGLWindowSystemBindingInfo(GLWindowSystemBindingInfo* info) {
-  return false;
-}
-
-}  // namespace gfx