Implement break signal for serial api.

extensions/browser/api/serial/serial_api.cc

Index: extensions/browser/api/serial/serial_api.cc
diff --git a/extensions/browser/api/serial/serial_api.cc b/extensions/browser/api/serial/serial_api.cc
index d2eead810a58b0a7c21a6925c21aeb3777cc423c..8b425a3337eeb5a8622838f2ed88bf9aa5c05e21 100644
--- a/extensions/browser/api/serial/serial_api.cc
+++ b/extensions/browser/api/serial/serial_api.cc
@@ -422,6 +422,53 @@ void SerialSetControlSignalsFunction::Work() {
   results_ = serial::SetControlSignals::Results::Create(success);
 }
 
+SerialSetBreakFunction::SerialSetBreakFunction() {
+}
+
+SerialSetBreakFunction::~SerialSetBreakFunction() {
+}
+
+bool SerialSetBreakFunction::Prepare() {
+  params_ = serial::SetBreak::Params::Create(*args_);
+  EXTENSION_FUNCTION_VALIDATE(params_.get());
+
+  return true;
+}
+
+void SerialSetBreakFunction::Work() {
+  SerialConnection* connection = GetSerialConnection(params_->connection_id);
+  if (!connection) {
+    error_ = kErrorSerialConnectionNotFound;
+    return;
+  }
+  bool success = connection->SetBreak();
+  results_ = serial::SetBreak::Results::Create(success);
+}
+
+SerialClearBreakFunction::SerialClearBreakFunction() {
+}
+
+SerialClearBreakFunction::~SerialClearBreakFunction() {
+}
+
+bool SerialClearBreakFunction::Prepare() {
+  params_ = serial::ClearBreak::Params::Create(*args_);
+  EXTENSION_FUNCTION_VALIDATE(params_.get());
+
+  return true;
+}
+
+void SerialClearBreakFunction::Work() {
+  SerialConnection* connection = GetSerialConnection(params_->connection_id);
+  if (!connection) {
+    error_ = kErrorSerialConnectionNotFound;
+    return;
+  }
+
+  bool success = connection->ClearBreak();
+  results_ = serial::ClearBreak::Results::Create(success);
+}
+
 }  // namespace core_api
 
 }  // namespace extensions