Delete usage and support for EGL_ANGLE_software_display extension.

ui/gl/gl_surface_win.cc

Index: ui/gl/gl_surface_win.cc
===================================================================
--- ui/gl/gl_surface_win.cc	(revision 206508)
+++ ui/gl/gl_surface_win.cc	(working copy)
@@ -173,7 +173,6 @@
 }
 
 scoped_refptr<GLSurface> GLSurface::CreateViewGLSurface(
-    bool software,
     gfx::AcceleratedWidget window) {
   TRACE_EVENT0("gpu", "GLSurface::CreateViewGLSurface");
   switch (GetGLImplementation()) {
@@ -186,16 +185,13 @@
       return surface;
     }
     case kGLImplementationEGLGLES2: {
-      scoped_refptr<GLSurface> surface(new NativeViewGLSurfaceEGL(software,
-          window));
+      scoped_refptr<GLSurface> surface(new NativeViewGLSurfaceEGL(window));
       if (!surface->Initialize())
         return NULL;
 
       return surface;
     }
     case kGLImplementationDesktopGL: {
-      if (software)
-        return NULL;
       scoped_refptr<GLSurface> surface(new NativeViewGLSurfaceWGL(
           window));
       if (!surface->Initialize())
@@ -212,7 +208,6 @@
 }
 
 scoped_refptr<GLSurface> GLSurface::CreateOffscreenGLSurface(
-    bool software,
     const gfx::Size& size) {
   TRACE_EVENT0("gpu", "GLSurface::CreateOffscreenGLSurface");
   switch (GetGLImplementation()) {
@@ -225,15 +220,13 @@
       return surface;
     }
     case kGLImplementationEGLGLES2: {
-      scoped_refptr<GLSurface> surface(new PbufferGLSurfaceEGL(software, size));
+      scoped_refptr<GLSurface> surface(new PbufferGLSurfaceEGL(size));
       if (!surface->Initialize())
         return NULL;
 
       return surface;
     }
     case kGLImplementationDesktopGL: {
-      if (software)
-        return NULL;
       scoped_refptr<GLSurface> surface(new PbufferGLSurfaceWGL(size));
       if (!surface->Initialize())
         return NULL;