Plumbs touch calibration API to the display manager

extensions/browser/api/system_display/display_info_provider.cc

Index: extensions/browser/api/system_display/display_info_provider.cc
diff --git a/extensions/browser/api/system_display/display_info_provider.cc b/extensions/browser/api/system_display/display_info_provider.cc
index 10bb9052359faf230c57794206b50b31c7c4d724..1b207ae019548a91dcf24ebef582e768a99b6ff4 100644
--- a/extensions/browser/api/system_display/display_info_provider.cc
+++ b/extensions/browser/api/system_display/display_info_provider.cc
@@ -126,19 +126,21 @@ bool DisplayInfoProvider::TouchCalibrationStart(const std::string& id) {
 bool DisplayInfoProvider::TouchCalibrationSet(
     const std::string& id,
     const api::system_display::TouchCalibrationPairQuad& pairs,
-    const api::system_display::Bounds& bounds) {
+    const api::system_display::Bounds& bounds,
+    std::string* error) {
   NOTREACHED();  // Implemented on Chrome OS only in override.
   return false;
 }
 
-bool DisplayInfoProvider::TouchCalibrationReset(const std::string& id) {
+bool DisplayInfoProvider::TouchCalibrationReset(const std::string& id,
+                                                std::string* error) {
   NOTREACHED();  // Implemented on Chrome OS only in override.
   return false;
 }
 
-bool DisplayInfoProvider::IsTouchCalibrationActive(const std::string& id) {
-  NOTREACHED(); // Implemented on Chrome OS only in override.
-  return false;
+bool DisplayInfoProvider::IsTouchCalibrationActive(std::string* error) {
+  NOTREACHED();  // Implemented on Chrome OS only in override.
+  return true;
 }
 
 DisplayInfoProvider::DisplayInfoProvider() {