Only store per-navigation permissions for http requests and not https.

chrome/browser/media/media_stream_devices_controller.cc

Index: chrome/browser/media/media_stream_devices_controller.cc
diff --git a/chrome/browser/media/media_stream_devices_controller.cc b/chrome/browser/media/media_stream_devices_controller.cc
index 395a500cd1e4f0968052af60fac82d5cbe18ab71..45e002d40614917bdb03f44bf60e2e98b71da5fc 100644
--- a/chrome/browser/media/media_stream_devices_controller.cc
+++ b/chrome/browser/media/media_stream_devices_controller.cc
@@ -410,13 +410,16 @@ void MediaStreamDevicesController::Accept(bool update_content_setting) {
                                           &devices);
         }
 
-        // Tag this navigation entry with the granted permissions.
-        // This avoids repeated prompts for requests accessed via http.
-        content::NavigationEntry* navigation_entry =
-            web_contents_->GetController().GetVisibleEntry();
-        if (navigation_entry) {
-          SetMediaPermissionsForNavigationEntry(
-              navigation_entry, request_, audio_allowed, video_allowed);
+        // For pages accessed via http (not https), tag this navigation entry
+        // with the granted permissions.  This avoids repeated prompts for
+        // device access.
+        if (!IsSchemeSecure()) {
+          content::NavigationEntry* navigation_entry =
+              web_contents_->GetController().GetVisibleEntry();
+          if (navigation_entry) {
+            SetMediaPermissionsForNavigationEntry(
+                navigation_entry, request_, audio_allowed, video_allowed);
+          }
         }
         break;
       }