Add a new set of commands to resize and position windows

chrome/browser/devtools/devtools_protocol.cc

Index: chrome/browser/devtools/devtools_protocol.cc
diff --git a/chrome/browser/devtools/devtools_protocol.cc b/chrome/browser/devtools/devtools_protocol.cc
index 5ba6a2213d58601d352c13e968dad2e3f5f8de8a..c6c8dad7545a74ebe5e80bc00a2c92caff049d45 100644
--- a/chrome/browser/devtools/devtools_protocol.cc
+++ b/chrome/browser/devtools/devtools_protocol.cc
@@ -22,7 +22,7 @@ const char kParamsParam[] = "params";
 const char kResultParam[] = "result";
 
 // JSON RPC 2.0 spec: http://www.jsonrpc.org/specification#error_object
-enum Error { kErrorInvalidParams = -32602 };
+enum Error { kErrorInvalidParams = -32602, kErrorServerError = -32000 };
 
 }  // namespace
 
@@ -58,6 +58,20 @@ DevToolsProtocol::CreateInvalidParamsResponse(int command_id,
 }
 
 // static
+std::unique_ptr<base::DictionaryValue> DevToolsProtocol::CreateErrorResponse(
+    int command_id,
+    const std::string& error_message) {
+  std::unique_ptr<base::DictionaryValue> response(new base::DictionaryValue());
+  response->SetInteger(kIdParam, command_id);
+  auto error_object = base::MakeUnique<base::DictionaryValue>();
+  error_object->SetInteger(kErrorCodeParam, kErrorServerError);
+  error_object->SetString(kErrorMessageParam, error_message);
+  response->Set(kErrorParam, std::move(error_object));
+
+  return response;
+}
+
+// static
 std::unique_ptr<base::DictionaryValue> DevToolsProtocol::CreateSuccessResponse(
     int command_id,
     std::unique_ptr<base::DictionaryValue> result) {