Abstract OSMesa from the Layout tests

gpu/ipc/host/gpu_memory_buffer_support.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 "gpu/ipc/host/gpu_memory_buffer_support.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "gpu/ipc/common/gpu_memory_buffer_support.h"
 #include "gpu/ipc/host/gpu_switches.h"
 #include "ui/gl/gl_bindings.h"
+#include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_switches.h"
 
 namespace gpu {
 
 bool AreNativeGpuMemoryBuffersEnabled() {
-  // Disable native buffers when using Mesa.
+  // Disable native buffers when using software GL.
   if (base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-          switches::kUseGL) == gl::kGLImplementationOSMesaName) {
+          switches::kUseGL) ==
+      gl::GetGLImplementationName(gl::GetSoftwareGLImplementation())) {
     return false;
   }
 
 #if defined(OS_MACOSX)
   return !base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kDisableNativeGpuMemoryBuffers);
 #else
   return base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableNativeGpuMemoryBuffers);
 #endif
@@ skipping 19 matching lines @@
         gfx::BufferUsage::GPU_READ_CPU_READ_WRITE,
         gfx::BufferUsage::GPU_READ_CPU_READ_WRITE_PERSISTENT};
     for (auto format : kNativeFormats) {
       for (auto usage : kNativeUsages) {
         if (IsNativeGpuMemoryBufferConfigurationSupported(format, usage))
           configurations.insert(std::make_pair(format, usage));
       }
     }
   }
 
-  // Disable native buffers only when using Mesa.
+  // Disable native buffers only when using software GL.
   bool force_native_gpu_read_write_formats =
       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-          switches::kUseGL) != gl::kGLImplementationOSMesaName;
+          switches::kUseGL) !=
+      gl::GetGLImplementationName(gl::GetSoftwareGLImplementation());
   if (force_native_gpu_read_write_formats) {
     const gfx::BufferFormat kGPUReadWriteFormats[] = {
         gfx::BufferFormat::BGR_565,   gfx::BufferFormat::RGBA_8888,
         gfx::BufferFormat::RGBX_8888, gfx::BufferFormat::BGRA_8888,
         gfx::BufferFormat::BGRX_8888, gfx::BufferFormat::UYVY_422,
         gfx::BufferFormat::YVU_420,   gfx::BufferFormat::YUV_420_BIPLANAR};
     const gfx::BufferUsage kGPUReadWriteUsages[] = {gfx::BufferUsage::GPU_READ,
                                                     gfx::BufferUsage::SCANOUT};
     for (auto format : kGPUReadWriteFormats) {
       for (auto usage : kGPUReadWriteUsages) {
@@ skipping 30 matching lines @@
       break;
   }
   NOTREACHED();
   return GL_TEXTURE_2D;
 #else  // defined(USE_OZONE) || defined(OS_MACOSX)
   return GL_TEXTURE_2D;
 #endif
 }
 
 }  // namespace gpu