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

android_webview/native/aw_picture.cc

Index: android_webview/native/aw_picture.cc
diff --git a/android_webview/native/aw_picture.cc b/android_webview/native/aw_picture.cc
index 9a7ff832ca3f4acc2a5742d8ade45cbbc790f95a..535908dc98aac155edc47720f78786a6b271681b 100644
--- a/android_webview/native/aw_picture.cc
+++ b/android_webview/native/aw_picture.cc
@@ -50,7 +50,7 @@ void AwPicture::Draw(JNIEnv* env, jobject obj, jobject canvas,
 }
 
 bool RegisterAwPicture(JNIEnv* env) {
-  return RegisterNativesImpl(env) >= 0;
+  return RegisterNativesImpl(env);
 }
 
 }  // namespace android_webview