Convert Ozone GL OSMesa implementation.

ui/gl/init/gl_factory_ozone.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_factory.h"
 
 #include "base/logging.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/gl/gl_context.h"
-#include "ui/gl/gl_context_osmesa.h"
 #include "ui/gl/gl_context_stub.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_share_group.h"
 #include "ui/gl/gl_surface.h"
-#include "ui/gl/gl_surface_osmesa.h"
 #include "ui/gl/gl_surface_stub.h"
 #include "ui/gl/init/ozone_util.h"
 
 namespace gl {
 namespace init {
 
-namespace {
-
-bool HasDefaultImplementation(GLImplementation impl) {
-  return impl == kGLImplementationOSMesaGL || impl == kGLImplementationMockGL ||
-         impl == kGLImplementationStubGL;
-}
-
-scoped_refptr<GLSurface> CreateDefaultViewGLSurface(
-    gfx::AcceleratedWidget window) {
-  switch (GetGLImplementation()) {
-    case kGLImplementationOSMesaGL:
-      return InitializeGLSurface(new GLSurfaceOSMesaHeadless());
-    case kGLImplementationMockGL:
-    case kGLImplementationStubGL:
-      return InitializeGLSurface(new GLSurfaceStub());
-    default:
-      NOTREACHED();
-  }
-  return nullptr;
-}
-
-scoped_refptr<GLSurface> CreateDefaultOffscreenGLSurface(
-    const gfx::Size& size) {
-  switch (GetGLImplementation()) {
-    case kGLImplementationOSMesaGL:
-      return InitializeGLSurface(
-          new GLSurfaceOSMesa(
-              GLSurfaceFormat(GLSurfaceFormat::PIXEL_LAYOUT_BGRA), size));
-    case kGLImplementationMockGL:
-    case kGLImplementationStubGL:
-      return InitializeGLSurface(new GLSurfaceStub);
-    default:
-      NOTREACHED();
-  }
-  return nullptr;
-}
-
-}  // namespace
-
 std::vector<GLImplementation> GetAllowedGLImplementations() {
   ui::OzonePlatform::InitializeForGPU();
   return GetSurfaceFactoryOzone()->GetAllowedGLImplementations();
 }
 
 bool GetGLWindowSystemBindingInfo(GLWindowSystemBindingInfo* info) {
   if (HasGLOzone())
     return GetGLOzone()->GetGLWindowSystemBindingInfo(info);
 
   return false;
@@ skipping 11 matching lines @@
 
   switch (GetGLImplementation()) {
     case kGLImplementationMockGL:
       return scoped_refptr<GLContext>(new GLContextStub(share_group));
     case kGLImplementationStubGL: {
       scoped_refptr<GLContextStub> stub_context =
           new GLContextStub(share_group);
       stub_context->SetUseStubApi(true);
       return stub_context;
     }
-    case kGLImplementationOSMesaGL:
-      return InitializeGLContext(new GLContextOSMesa(share_group),
-                                 compatible_surface, attribs);
     default:
       NOTREACHED();
   }
   return nullptr;
 }
 
 scoped_refptr<GLSurface> CreateViewGLSurface(gfx::AcceleratedWidget window) {
   TRACE_EVENT0("gpu", "gl::init::CreateViewGLSurface");
 
   if (HasGLOzone())
     return GetGLOzone()->CreateViewGLSurface(window);
 
-  if (HasDefaultImplementation(GetGLImplementation()))
-    return CreateDefaultViewGLSurface(window);
+  switch (GetGLImplementation()) {
+    case kGLImplementationMockGL:
+    case kGLImplementationStubGL:
+      return InitializeGLSurface(new GLSurfaceStub());
+    default:
+      NOTREACHED();
+  }
 
   return nullptr;
 }
 
 scoped_refptr<GLSurface> CreateSurfacelessViewGLSurface(
     gfx::AcceleratedWidget window) {
   TRACE_EVENT0("gpu", "gl::init::CreateSurfacelessViewGLSurface");
 
   if (HasGLOzone())
     return GetGLOzone()->CreateSurfacelessViewGLSurface(window);
 
   return nullptr;
 }
 
 scoped_refptr<GLSurface> CreateOffscreenGLSurfaceWithFormat(
     const gfx::Size& size, GLSurfaceFormat format) {
   TRACE_EVENT0("gpu", "gl::init::CreateOffscreenGLSurface");
 
   if (!format.IsDefault()) {
     NOTREACHED() << "FATAL: Ozone only supports default-format surfaces.";
     return nullptr;
   }
 
   if (HasGLOzone())
     return GetGLOzone()->CreateOffscreenGLSurface(size);
 
-  if (HasDefaultImplementation(GetGLImplementation()))
-    return CreateDefaultOffscreenGLSurface(size);
+  switch (GetGLImplementation()) {
+    case kGLImplementationMockGL:
+    case kGLImplementationStubGL:
+      return InitializeGLSurface(new GLSurfaceStub);
+    default:
+      NOTREACHED();
+  }
 
   return nullptr;
 }
 
 }  // namespace init
 }  // namespace gl