Selectively perform JNI registration in render processes on Android.

base/android/jni_generator/testMainDexFile.golden

+// 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.
+
+// This file is autogenerated by
+//     base/android/jni_generator/jni_generator.py
+// For
+//     org/chromium/foo/Bar
+
+#ifndef org_chromium_foo_Bar_JNI
+#define org_chromium_foo_Bar_JNI
+
+#include <jni.h>
+
+#include "base/android/jni_generator/jni_generator_helper.h"
+
+#include "base/android/jni_int_wrapper.h"
+
+// Step 1: forward declarations.
+namespace {
+const char kBarClassPath[] = "org/chromium/foo/Bar";
+// Leaking this jclass as we cannot use LazyInstance from some threads.
+base::subtle::AtomicWord g_Bar_clazz __attribute__((unused)) = 0;
+#define Bar_clazz(env) base::android::LazyGetClass(env, kBarClassPath, &g_Bar_clazz)
+
+}  // namespace
+
+// Step 2: method stubs.
+JNI_GENERATOR_EXPORT jint Java_org_chromium_foo_Bar_nativeStaticMethod(JNIEnv*
+    env, jobject jcaller,
+    jlong nativeTest,
+    jint arg1) {
+  Test* native = reinterpret_cast<Test*>(nativeTest);
+  CHECK_NATIVE_PTR(env, jcaller, native, "StaticMethod", 0);
+  return native->StaticMethod(env, base::android::JavaParamRef<jobject>(env,
+      jcaller), arg1);
+}
+
+// Step 3: RegisterNatives.
+
+static const JNINativeMethod kMethodsBar[] = {
+    { "nativeStaticMethod",
+"("
+"J"
+"I"
+")"
+"I", reinterpret_cast<void*>(Java_org_chromium_foo_Bar_nativeStaticMethod) },
+};
+
+static bool RegisterNativesImpl(JNIEnv* env) {
+  if (jni_generator::ShouldSkipJniRegistration(true))
+    return true;
+
+  const int kMethodsBarSize = arraysize(kMethodsBar);
+
+  if (env->RegisterNatives(Bar_clazz(env),
+                           kMethodsBar,
+                           kMethodsBarSize) < 0) {
+    jni_generator::HandleRegistrationError(
+        env, Bar_clazz(env), __FILE__);
+    return false;
+  }
+
+  return true;
+}
+
+#endif  // org_chromium_foo_Bar_JNI