Add Get/SetDisplayLayout to chrome.system.display extension API

extensions/browser/api/system_display/system_display_api.cc

Index: extensions/browser/api/system_display/system_display_api.cc
diff --git a/extensions/browser/api/system_display/system_display_api.cc b/extensions/browser/api/system_display/system_display_api.cc
index 03adfd7e8664463ac90abf7c5d484ba603864d3a..2b09bad50bcd88c0cb5771da2772fb3a04223ff4 100644
--- a/extensions/browser/api/system_display/system_display_api.cc
+++ b/extensions/browser/api/system_display/system_display_api.cc
@@ -17,9 +17,7 @@
 
 namespace extensions {
 
-using api::system_display::DisplayUnitInfo;
-
-namespace SetDisplayProperties = api::system_display::SetDisplayProperties;
+namespace system_display = api::system_display;
 
 const char SystemDisplayFunction::kCrosOnlyError[] =
     "Function available only on ChromeOS.";
@@ -38,12 +36,24 @@ bool SystemDisplayFunction::CheckValidExtension() {
 }
 
 bool SystemDisplayGetInfoFunction::RunSync() {
-  DisplayUnitInfoList all_displays_info =
+  DisplayInfoProvider::DisplayUnitInfoList all_displays_info =
       DisplayInfoProvider::Get()->GetAllDisplaysInfo();
-  results_ = api::system_display::GetInfo::Results::Create(all_displays_info);
+  results_ = system_display::GetInfo::Results::Create(all_displays_info);
   return true;
 }
 
+bool SystemDisplayGetDisplayLayoutFunction::RunSync() {
+#if !defined(OS_CHROMEOS)
+  SetError(kCrosOnlyError);
+  return false;
+#else
+  DisplayInfoProvider::DisplayLayoutList display_layout =
+      DisplayInfoProvider::Get()->GetDisplayLayout();
+  results_ = system_display::GetDisplayLayout::Results::Create(display_layout);
+  return true;
+#endif
+}
+
 bool SystemDisplaySetDisplayPropertiesFunction::RunSync() {
 #if !defined(OS_CHROMEOS)
   SetError(kCrosOnlyError);
@@ -52,8 +62,8 @@ bool SystemDisplaySetDisplayPropertiesFunction::RunSync() {
   if (!CheckValidExtension())
     return false;
   std::string error;
-  std::unique_ptr<SetDisplayProperties::Params> params(
-      SetDisplayProperties::Params::Create(*args_));
+  std::unique_ptr<system_display::SetDisplayProperties::Params> params(
+      system_display::SetDisplayProperties::Params::Create(*args_));
   bool result =
       DisplayInfoProvider::Get()->SetInfo(params->id, params->info, &error);
   if (!result)
@@ -62,6 +72,23 @@ bool SystemDisplaySetDisplayPropertiesFunction::RunSync() {
 #endif
 }
 
+bool SystemDisplaySetDisplayLayoutFunction::RunSync() {
+#if !defined(OS_CHROMEOS)
+  SetError(kCrosOnlyError);
+  return false;
+#else
+  if (!CheckValidExtension())
+    return false;
+  std::unique_ptr<system_display::SetDisplayLayout::Params> params(
+      system_display::SetDisplayLayout::Params::Create(*args_));
+  if (!DisplayInfoProvider::Get()->SetDisplayLayout(params->layouts)) {
+    SetError("Unable to set display layout");
+    return false;
+  }
+  return true;
+#endif
+}
+
 bool SystemDisplayEnableUnifiedDesktopFunction::RunSync() {
 #if !defined(OS_CHROMEOS)
   SetError(kCrosOnlyError);
@@ -69,8 +96,8 @@ bool SystemDisplayEnableUnifiedDesktopFunction::RunSync() {
 #else
   if (!CheckValidExtension())
     return false;
-  std::unique_ptr<api::system_display::EnableUnifiedDesktop::Params> params(
-      api::system_display::EnableUnifiedDesktop::Params::Create(*args_));
+  std::unique_ptr<system_display::EnableUnifiedDesktop::Params> params(
+      system_display::EnableUnifiedDesktop::Params::Create(*args_));
   DisplayInfoProvider::Get()->EnableUnifiedDesktop(params->enabled);
   return true;
 #endif
@@ -83,8 +110,8 @@ bool SystemDisplayOverscanCalibrationStartFunction::RunSync() {
 #else
   if (!CheckValidExtension())
     return false;
-  std::unique_ptr<api::system_display::OverscanCalibrationStart::Params> params(
-      api::system_display::OverscanCalibrationStart::Params::Create(*args_));
+  std::unique_ptr<system_display::OverscanCalibrationStart::Params> params(
+      system_display::OverscanCalibrationStart::Params::Create(*args_));
   if (!DisplayInfoProvider::Get()->OverscanCalibrationStart(params->id)) {
     SetError("Invalid display ID: " + params->id);
     return false;
@@ -100,9 +127,8 @@ bool SystemDisplayOverscanCalibrationAdjustFunction::RunSync() {
 #else
   if (!CheckValidExtension())
     return false;
-  std::unique_ptr<api::system_display::OverscanCalibrationAdjust::Params>
-      params(api::system_display::OverscanCalibrationAdjust::Params::Create(
-          *args_));
+  std::unique_ptr<system_display::OverscanCalibrationAdjust::Params> params(
+      system_display::OverscanCalibrationAdjust::Params::Create(*args_));
   if (!params) {
     SetError("Invalid parameters");
     return false;
@@ -123,8 +149,8 @@ bool SystemDisplayOverscanCalibrationResetFunction::RunSync() {
 #else
   if (!CheckValidExtension())
     return false;
-  std::unique_ptr<api::system_display::OverscanCalibrationReset::Params> params(
-      api::system_display::OverscanCalibrationReset::Params::Create(*args_));
+  std::unique_ptr<system_display::OverscanCalibrationReset::Params> params(
+      system_display::OverscanCalibrationReset::Params::Create(*args_));
   if (!DisplayInfoProvider::Get()->OverscanCalibrationReset(params->id)) {
     SetError("Calibration not started for display ID: " + params->id);
     return false;
@@ -140,9 +166,8 @@ bool SystemDisplayOverscanCalibrationCompleteFunction::RunSync() {
 #else
   if (!CheckValidExtension())
     return false;
-  std::unique_ptr<api::system_display::OverscanCalibrationComplete::Params>
-      params(api::system_display::OverscanCalibrationComplete::Params::Create(
-          *args_));
+  std::unique_ptr<system_display::OverscanCalibrationComplete::Params> params(
+      system_display::OverscanCalibrationComplete::Params::Create(*args_));
   if (!DisplayInfoProvider::Get()->OverscanCalibrationComplete(params->id)) {
     SetError("Calibration not started for display ID: " + params->id);
     return false;