Remove remaining traces of CreateGpuMemoryBufferImageCHROMIUM

gpu/command_buffer/tests/gl_copy_texture_CHROMIUM_unittest.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.
 
 #ifndef GL_GLEXT_PROTOTYPES
 #define GL_GLEXT_PROTOTYPES
 #endif
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
@@ skipping 282 matching lines @@
     gl_.Initialize(options);
 
     width_ = 8;
     height_ = 8;
   }
 
   void TearDown() override { gl_.Destroy(); }
 
   void CreateBackingForTexture(GLenum target, GLsizei width, GLsizei height) {
     if (target == GL_TEXTURE_RECTANGLE_ARB) {
-      GLuint image_id = glCreateGpuMemoryBufferImageCHROMIUM(
-          width, height, GL_RGBA, GL_READ_WRITE_CHROMIUM);
+      std::unique_ptr<gfx::GpuMemoryBuffer> buffer(gl_.CreateGpuMemoryBuffer(
+          gfx::Size(width, height), gfx::BufferFormat::RGBA_8888));
+      GLuint image_id = glCreateImageCHROMIUM(buffer->AsClientBuffer(), width,
+                                              height, GL_RGBA);
       glBindTexImage2DCHROMIUM(target, image_id);
     } else {
       glTexImage2D(target, 0, GL_RGBA, width, height, 0, GL_RGBA,
                    GL_UNSIGNED_BYTE, nullptr);
     }
   }
 
   GLuint CreateDrawingTexture(GLenum target, GLsizei width, GLsizei height) {
     GLuint texture = 0;
     glGenTextures(1, &texture);
@@ skipping 1269 matching lines @@
         }
       }
 
       glDeleteTextures(2, textures_);
       glDeleteFramebuffers(1, &framebuffer_id_);
     }
   }
 }
 
 }  // namespace gpu