Provide a safer URLLoader ReadResponseBody API

webkit/plugins/ppapi/ppb_url_loader_impl.h

Index: webkit/plugins/ppapi/ppb_url_loader_impl.h
diff --git a/webkit/plugins/ppapi/ppb_url_loader_impl.h b/webkit/plugins/ppapi/ppb_url_loader_impl.h
index aa1acfdd91afedb81b5f066a9ab00655cac0f051..ad3882c6fb21481361e9d22328d4565d8b351829 100644
--- a/webkit/plugins/ppapi/ppb_url_loader_impl.h
+++ b/webkit/plugins/ppapi/ppb_url_loader_impl.h
@@ -57,6 +57,10 @@ class PPB_URLLoader_Impl : public ::ppapi::Resource,
       void* buffer,
       int32_t bytes_to_read,
       scoped_refptr< ::ppapi::TrackedCallback> callback) OVERRIDE;
+  virtual int32_t ReadResponseBodyToArray(
+      int32_t max_read_length,
+      PP_ArrayOutput* array_output,
+      scoped_refptr< ::ppapi::TrackedCallback> callback) OVERRIDE;
   virtual int32_t FinishStreamingToFile(
       scoped_refptr< ::ppapi::TrackedCallback> callback) OVERRIDE;
   virtual void Close() OVERRIDE;
@@ -66,6 +70,11 @@ class PPB_URLLoader_Impl : public ::ppapi::Resource,
   virtual bool GetResponseInfoData(
       ::ppapi::URLResponseInfoData* data) OVERRIDE;
 
+  int32_t ReadResponseBodyInternal(
+      int32_t max_read_length,
+      const PP_ArrayOutput& array_output,
+      scoped_refptr< ::ppapi::TrackedCallback> callback);
+
   // WebKit::WebURLLoaderClient implementation.
   virtual void willSendRequest(WebKit::WebURLLoader* loader,
                                WebKit::WebURLRequest& new_request,
@@ -151,7 +160,7 @@ class PPB_URLLoader_Impl : public ::ppapi::Resource,
   int64_t total_bytes_to_be_sent_;
   int64_t bytes_received_;
   int64_t total_bytes_to_be_received_;
-  char* user_buffer_;
+  scoped_ptr<PP_ArrayOutput> user_buffer_;
   size_t user_buffer_size_;
   int32_t done_status_;
   bool is_streaming_to_file_;