[android_webview] Fix use after free in intercepted requests.

android_webview/native/intercepted_request_data_impl.cc

 // Copyright (c) 2012 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/intercepted_request_data_impl.h"
 
 #include "android_webview/browser/net/android_stream_reader_url_request_job.h"
 #include "android_webview/native/input_stream_impl.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 17 matching lines @@
     }
 
     virtual scoped_ptr<InputStream> OpenInputStream(
         JNIEnv* env,
         net::URLRequest* request) OVERRIDE {
       return intercepted_request_data_impl_->GetInputStream(env).Pass();
     }
 
     virtual bool GetMimeType(JNIEnv* env,
                              net::URLRequest* request,
-                             const android_webview::InputStream& stream,
+                             android_webview::InputStream* stream,
                              std::string* mime_type) OVERRIDE {
       return intercepted_request_data_impl_->GetMimeType(env, mime_type);
     }
 
     virtual bool GetCharset(JNIEnv* env,
                             net::URLRequest* request,
-                            const android_webview::InputStream& stream,
+                            android_webview::InputStream* stream,
                             std::string* charset) OVERRIDE {
       return intercepted_request_data_impl_->GetCharset(env, charset);
     }
 
  private:
     const InterceptedRequestDataImpl* intercepted_request_data_impl_;
 };
 
 } // namespace
 
@@ skipping 41 matching lines @@
 net::URLRequestJob* InterceptedRequestDataImpl::CreateJobFor(
     net::URLRequest* request,
     net::NetworkDelegate* network_delegate) const {
   scoped_ptr<AndroidStreamReaderURLRequestJob::Delegate>
       stream_reader_job_delegate_impl(new StreamReaderJobDelegateImpl(this));
   return new AndroidStreamReaderURLRequestJob(
       request, network_delegate, stream_reader_job_delegate_impl.Pass());
 }
 
 } // namespace android_webview