Implement ScreenOrientationDelegate on ChromeOS

content/public/browser/screen_orientation_provider.cc

Index: content/public/browser/screen_orientation_provider.cc
diff --git a/content/public/browser/screen_orientation_provider.cc b/content/public/browser/screen_orientation_provider.cc
index 35a07eeffde67319a00fca785cc50b72d335372c..3336cdff840ff2a7404c108065e5a070da61964d 100644
--- a/content/public/browser/screen_orientation_provider.cc
+++ b/content/public/browser/screen_orientation_provider.cc
@@ -72,8 +72,13 @@ void ScreenOrientationProvider::LockOrientation(int request_id,
     }
   }
 
-  lock_applied_ = true;
-  delegate_->Lock(lock_orientation);
+  lock_applied_ = delegate_->Lock(web_contents(), lock_orientation);
+  if (!lock_applied_) {
+    // The delegate was unable to lock, cancel.
+    dispatcher_->NotifyLockError(request_id,
+                                 blink::WebLockOrientationErrorCanceled);
+    return;
+  }
 
   // If two calls happen close to each other some platforms will ignore the
   // first. A successful lock will be once orientation matches the latest
@@ -94,7 +99,7 @@ void ScreenOrientationProvider::UnlockOrientation() {
   if (!lock_applied_ || !delegate_)
     return;
 
-  delegate_->Unlock();
+  delegate_->Unlock(web_contents());
 
   lock_applied_ = false;
   pending_lock_.reset();