Build third-party code with -Wall, build chromium_code with -Wextra on Linux

content/browser/android/java/gin_java_method_invocation_helper.cc

 // 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.
 
 #include "content/browser/android/java/gin_java_method_invocation_helper.h"
 
 #include <unistd.h>
 #include <cmath>
 #include <utility>
 
@@ skipping 191 matching lines @@
 const base::android::JavaRef<jobject>&
 GinJavaMethodInvocationHelper::GetObjectResult() {
   return object_result_;
 }
 
 const base::android::JavaRef<jclass>&
 GinJavaMethodInvocationHelper::GetSafeAnnotationClass() {
   return safe_annotation_clazz_;
 }
 
-const GinJavaBridgeError GinJavaMethodInvocationHelper::GetInvocationError() {
+GinJavaBridgeError GinJavaMethodInvocationHelper::GetInvocationError() {
   return invocation_error_;
 }
 
 void GinJavaMethodInvocationHelper::InvokeMethod(jobject object,
                                                  jclass clazz,
                                                  const JavaType& return_type,
                                                  jmethodID id,
                                                  jvalue* parameters) {
   DCHECK(object || clazz);
   JNIEnv* env = AttachCurrentThread();
@@ skipping 113 matching lines @@
   }
   // This is for all cases except JavaType::TypeObject.
   if (!base::android::ClearException(env)) {
     SetPrimitiveResult(result_wrapper);
   } else {
     SetInvocationError(kGinJavaBridgeJavaExceptionRaised);
   }
 }
 
 }  // namespace content