Attempt to fix Linux ChromiumOS Ozone Builder after r290136.

ui/gl/gl_surface_ozone.cc

 // Copyright 2014 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/gl_surface.h"
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gl/gl_context.h"
@@ skipping 136 matching lines @@
       return surface;
   }
   return NULL;
 }
 
 // static
 scoped_refptr<GLSurface> GLSurface::CreateOffscreenGLSurface(
     const gfx::Size& size) {
   switch (GetGLImplementation()) {
     case kGLImplementationOSMesaGL: {
-      scoped_refptr<GLSurface> surface(new GLSurfaceOSMesa(1, size));
+      scoped_refptr<GLSurface> surface(
+          new GLSurfaceOSMesa(OSMesaSurfaceFormatBGRA, size));
       if (!surface->Initialize())
         return NULL;
 
       return surface;
     }
     case kGLImplementationEGLGLES2: {
       scoped_refptr<GLSurface> surface;
       if (GLSurfaceEGL::IsEGLSurfacelessContextSupported() &&
           (size.width() == 0 && size.height() == 0)) {
         surface = new SurfacelessEGL(size);
       } else
         surface = new PbufferGLSurfaceEGL(size);
 
       if (!surface->Initialize())
         return NULL;
       return surface;
     }
     default:
       NOTREACHED();
       return NULL;
   }
 }
 
 EGLNativeDisplayType GetPlatformDefaultEGLNativeDisplay() {
   return ui::SurfaceFactoryOzone::GetInstance()->GetNativeDisplay();
 }
 
 }  // namespace gfx