WebView: RegisterNativesImpl() returns bool; don't compare it for >= 0.

android_webview/native/aw_picture.cc

 // Copyright 2013 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 "android_webview/native/aw_picture.h"
 
 #include "android_webview/native/java_browser_view_renderer_helper.h"
 #include "base/bind.h"
 #include "jni/AwPicture_jni.h"
 #include "third_party/skia/include/core/SkPicture.h"
@@ skipping 32 matching lines @@
                 ->RenderViaAuxilaryBitmapIfNeeded(
                       canvas,
                       gfx::Vector2d(),
                       gfx::Rect(left, top, right - left, bottom - top),
                       base::Bind(&RenderPictureToCanvas,
                                  base::Unretained(picture_.get())));
   LOG_IF(ERROR, !ok) << "Couldn't draw picture";
 }
 
 bool RegisterAwPicture(JNIEnv* env) {
-  return RegisterNativesImpl(env) >= 0;
+  return RegisterNativesImpl(env);
 }
 
 }  // namespace android_webview