Refactor GL bindings so there is no global GLApi or DriverGL.

ui/gl/yuv_to_rgb_converter.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/yuv_to_rgb_converter.h"
 
 #include "base/strings/stringize_macros.h"
 #include "base/strings/stringprintf.h"
 #include "ui/gl/gl_helper.h"
 #include "ui/gl/gl_version_info.h"
-#include "ui/gl/scoped_api.h"
 #include "ui/gl/scoped_binders.h"
 
 namespace gl {
 namespace {
 
 const char kVertexHeaderCompatiblityProfile[] =
     "#version 110\n"
     "#define ATTRIBUTE attribute\n"
     "#define VARYING varying\n";
 
@@ skipping 43 matching lines @@
         TEX(a_uv_texture, v_texCoord * 0.5).rg);
     FRAGCOLOR = vec4(yuv_matrix * (yuv + yuv_adj), 1.0);
   }
 );
 // clang-format on
 
 }  // namespace
 
 YUVToRGBConverter::YUVToRGBConverter(const GLVersionInfo& gl_version_info) {
   bool use_core_profile = gl_version_info.is_desktop_core_profile;
-  ScopedSetGLToRealGLApi scoped_set_gl_api;
   glGenFramebuffersEXT(1, &framebuffer_);
   vertex_buffer_ = GLHelper::SetupQuadVertexBuffer();
   vertex_shader_ = GLHelper::LoadShader(
       GL_VERTEX_SHADER,
       base::StringPrintf("%s\n%s",
                          use_core_profile ? kVertexHeaderCoreProfile
                                           : kVertexHeaderCompatiblityProfile,
                          kVertexShader)
           .c_str());
   fragment_shader_ = GLHelper::LoadShader(
@@ skipping 14 matching lines @@
   DCHECK_NE(-1, uv_sampler_location);
 
   glGenTextures(1, &y_texture_);
   glGenTextures(1, &uv_texture_);
 
   glUniform1i(y_sampler_location, 0);
   glUniform1i(uv_sampler_location, 1);
 }
 
 YUVToRGBConverter::~YUVToRGBConverter() {
-  ScopedSetGLToRealGLApi scoped_set_gl_api;
   glDeleteTextures(1, &y_texture_);
   glDeleteTextures(1, &uv_texture_);
   glDeleteProgram(program_);
   glDeleteShader(vertex_shader_);
   glDeleteShader(fragment_shader_);
   glDeleteBuffersARB(1, &vertex_buffer_);
   glDeleteFramebuffersEXT(1, &framebuffer_);
 }
 
 void YUVToRGBConverter::CopyYUV420ToRGB(unsigned target,
                                         const gfx::Size& size,
                                         unsigned rgb_texture) {
-  ScopedSetGLToRealGLApi scoped_set_gl_api;
-
   // Note that state restoration is done explicitly instead of scoped binders to
   // avoid https://crbug.com/601729.
   GLint old_active_texture = -1;
   glGetIntegerv(GL_ACTIVE_TEXTURE, &old_active_texture);
   GLint old_texture0_binding = -1;
   glActiveTexture(GL_TEXTURE0);
   glGetIntegerv(GL_TEXTURE_BINDING_RECTANGLE_ARB, &old_texture0_binding);
   GLint old_texture1_binding = -1;
   glActiveTexture(GL_TEXTURE1);
   glGetIntegerv(GL_TEXTURE_BINDING_RECTANGLE_ARB, &old_texture1_binding);
@@ skipping 22 matching lines @@
   glFramebufferTexture2DEXT(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
                             target, 0, 0);
   glActiveTexture(GL_TEXTURE0);
   glBindTexture(GL_TEXTURE_RECTANGLE_ARB, old_texture0_binding);
   glActiveTexture(GL_TEXTURE1);
   glBindTexture(GL_TEXTURE_RECTANGLE_ARB, old_texture1_binding);
   glActiveTexture(old_active_texture);
 }
 
 }  // namespace gl