Revert 247793 "Ensure GL initialization only happens once, and p..."

trunk/src/ui/gl/gl_surface_egl.cc

Index: trunk/src/ui/gl/gl_surface_egl.cc
===================================================================
--- trunk/src/ui/gl/gl_surface_egl.cc	(revision 247809)
+++ trunk/src/ui/gl/gl_surface_egl.cc	(working copy)
@@ -784,15 +784,15 @@
 
 // static
 bool GLSurface::InitializeOneOffInternal() {
-  switch (GetGLImplementation()) {
-    case kGLImplementationEGLGLES2:
-      if (!GLSurfaceEGL::InitializeOneOff()) {
-        LOG(ERROR) << "GLSurfaceEGL::InitializeOneOff failed.";
-        return false;
-      }
-    default:
-      break;
+  if (GetGLImplementation() == kGLImplementationOSMesaGL) {
+    return true;
   }
+  DCHECK(GetGLImplementation() == kGLImplementationEGLGLES2);
+
+  if (!GLSurfaceEGL::InitializeOneOff()) {
+    LOG(ERROR) << "GLSurfaceEGL::InitializeOneOff failed.";
+    return false;
+  }
   return true;
 }