json_schema_compiler: Use std::vector<char> for binary values.

extensions/browser/api/hid/hid_api.cc

Index: extensions/browser/api/hid/hid_api.cc
diff --git a/extensions/browser/api/hid/hid_api.cc b/extensions/browser/api/hid/hid_api.cc
index e021cf2a8cc1aaa88a13edd9b0a8592c69ba3f26..d67f56499d88346f99b184179e09d220e31e4776 100644
--- a/extensions/browser/api/hid/hid_api.cc
+++ b/extensions/browser/api/hid/hid_api.cc
@@ -7,6 +7,7 @@
 #include <string>
 #include <vector>
 
+#include "base/stl_util.h"
 #include "device/core/device_client.h"
 #include "device/hid/hid_connection.h"
 #include "device/hid/hid_device_filter.h"
@@ -253,8 +254,8 @@ void HidSendFunction::StartWork(HidConnection* connection) {
   scoped_refptr<net::IOBufferWithSize> buffer(
       new net::IOBufferWithSize(parameters_->data.size() + 1));
   buffer->data()[0] = static_cast<uint8_t>(parameters_->report_id);
-  memcpy(
-      buffer->data() + 1, parameters_->data.c_str(), parameters_->data.size());
+  memcpy(buffer->data() + 1, parameters_->data.data(),
+         parameters_->data.size());
   connection->Write(buffer, buffer->size(),
                     base::Bind(&HidSendFunction::OnFinished, this));
 }
@@ -311,8 +312,8 @@ void HidSendFeatureReportFunction::StartWork(HidConnection* connection) {
   scoped_refptr<net::IOBufferWithSize> buffer(
       new net::IOBufferWithSize(parameters_->data.size() + 1));
   buffer->data()[0] = static_cast<uint8_t>(parameters_->report_id);
-  memcpy(
-      buffer->data() + 1, parameters_->data.c_str(), parameters_->data.size());
+  memcpy(buffer->data() + 1, vector_as_array(&parameters_->data),
+         parameters_->data.size());
   connection->SendFeatureReport(
       buffer, buffer->size(),
       base::Bind(&HidSendFeatureReportFunction::OnFinished, this));