Make class lookup lazy in jni_generator when using lazy method lookup.

base/android/jni_generator/testEagerCalledByNativesOption.golden

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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/example/jni_generator/Test
 
 #ifndef org_chromium_example_jni_generator_Test_JNI
 #define org_chromium_example_jni_generator_Test_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 kTestClassPath[] = "org/chromium/example/jni_generator/Test";
+#if __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-function"
+#endif
 // Leaking this jclass as we cannot use LazyInstance from some threads.
 jclass g_Test_clazz = NULL;
+jclass Test_clazz(JNIEnv*) { return g_Test_clazz; }
+#if __clang__
+#pragma clang diagnostic pop
+#endif
 jmethodID g_Test_testMethodWithParam = NULL;
 jmethodID g_Test_testStaticMethodWithParam = NULL;
 jmethodID g_Test_testMethodWithNoParam = NULL;
 jmethodID g_Test_testStaticMethodWithNoParam = NULL;
 }  // namespace
 
 // Step 2: method stubs.
 static jint Method(JNIEnv* env, jobject jcaller,
     jlong nativeTest,
     jint arg1) {
   Test* native = reinterpret_cast<Test*>(nativeTest);
   CHECK_NATIVE_PTR(env, jcaller, native, "Method", 0);
   return native->Method(env, jcaller, arg1);
 }
 
 namespace {
 
 static void testMethodWithParam(JNIEnv* env, jobject obj, JniIntWrapper iParam)
     {
   env->CallVoidMethod(obj,
       g_Test_testMethodWithParam, as_jint(iParam));
 
 }
 
 static jint testStaticMethodWithParam(JNIEnv* env, JniIntWrapper iParam) {
-  jint ret = env->CallStaticIntMethod(g_Test_clazz,
+  jint ret = env->CallStaticIntMethod(Test_clazz(env),
       g_Test_testStaticMethodWithParam, as_jint(iParam));
   return ret;
 }
 
 static jdouble testMethodWithNoParam(JNIEnv* env) {
-  jdouble ret = env->CallStaticDoubleMethod(g_Test_clazz,
+  jdouble ret = env->CallStaticDoubleMethod(Test_clazz(env),
       g_Test_testMethodWithNoParam);
   return ret;
 }
 
 static base::android::ScopedJavaLocalRef<jstring>
     testStaticMethodWithNoParam(JNIEnv* env) {
-  jstring ret = static_cast<jstring>(env->CallStaticObjectMethod(g_Test_clazz,
+  jstring ret =
+      static_cast<jstring>(env->CallStaticObjectMethod(Test_clazz(env),
       g_Test_testStaticMethodWithNoParam));
   return base::android::ScopedJavaLocalRef<jstring>(env, ret);
 }
 }  // namespace
 
 // Step 3: RegisterNatives.
 
 static const JNINativeMethod kMethodsTest[] = {
     { "nativeMethod",
 "("
 "J"
 "I"
 ")"
 "I", reinterpret_cast<void*>(Method) },
 };
 
 static bool RegisterNativesImpl(JNIEnv* env, jclass clazz) {
   g_Test_clazz = static_cast<jclass>(env->NewWeakGlobalRef(clazz));
 
   const int kMethodsTestSize = arraysize(kMethodsTest);
 
-  if (env->RegisterNatives(g_Test_clazz,
+  if (env->RegisterNatives(Test_clazz(env),
                            kMethodsTest,
                            kMethodsTestSize) < 0) {
     jni_generator::HandleRegistrationError(
-        env, g_Test_clazz, __FILE__);
+        env, Test_clazz(env), __FILE__);
     return false;
   }
 
   g_Test_testMethodWithParam = env->GetMethodID(
-      g_Test_clazz,
+      Test_clazz(env),
       "testMethodWithParam",
 "("
 "I"
 ")"
 "V");
   if (g_Test_testMethodWithParam == NULL) {
     return false;
   }
 
   g_Test_testStaticMethodWithParam = env->GetStaticMethodID(
-      g_Test_clazz,
+      Test_clazz(env),
       "testStaticMethodWithParam",
 "("
 "I"
 ")"
 "I");
   if (g_Test_testStaticMethodWithParam == NULL) {
     return false;
   }
 
   g_Test_testMethodWithNoParam = env->GetStaticMethodID(
-      g_Test_clazz,
+      Test_clazz(env),
       "testMethodWithNoParam",
 "("
 ")"
 "D");
   if (g_Test_testMethodWithNoParam == NULL) {
     return false;
   }
 
   g_Test_testStaticMethodWithNoParam = env->GetStaticMethodID(
-      g_Test_clazz,
+      Test_clazz(env),
       "testStaticMethodWithNoParam",
 "("
 ")"
 "Ljava/lang/String;");
   if (g_Test_testStaticMethodWithNoParam == NULL) {
     return false;
   }
 
   return true;
 }
 
 extern "C" JNIEXPORT bool JNICALL
 Java_org_chromium_example_jni_generator_Test_nativeInitNativeClass(JNIEnv* env,
     jclass clazz) {
   return RegisterNativesImpl(env, clazz);
 }
 
 #endif  // org_chromium_example_jni_generator_Test_JNI