Rename variables to make type clearer

common/lib/xmodule/xmodule/textannotation_module.py

@@ -81,7 +81,7 @@ class TextAnnotationModule(AnnotatableFields, XModule):
     def get_html(self):
         """ Renders parameters to template. """
         context = {
-            'course_id': self.runtime.course_id,
+            'course_key': self.runtime.course_id,
             'display_name': self.display_name_with_default,
             'tag': self.tags,
             'source': self.source,

common/lib/xmodule/xmodule/videoannotation_module.py

@@ -149,7 +149,7 @@ class VideoAnnotationModule(AnnotatableFields, XModule):
         extension = self._get_extension(self.sourceurl)
 
         context = {
-            'course_id': self.runtime.course_id,
+            'course_key': self.runtime.course_id,
             'display_name': self.display_name_with_default,
             'instructions_html': self.instructions,
             'sourceUrl': self.sourceurl,

lms/templates/textannotation.html

@@ -112,7 +112,7 @@
                   },
             },
             auth: {
-                tokenUrl: location.protocol+'//'+location.host+"/token?course_id=${course_id.to_deprecated_string()}"
+                tokenUrl: location.protocol+'//'+location.host+"/token?course_id=${course_key.to_deprecated_string()}"
             },
             store: {
                 // The endpoint of the store on your server.

lms/templates/videoannotation.html

@@ -116,7 +116,7 @@
                   },
             },
             auth: {
-                tokenUrl: location.protocol+'//'+location.host+"/token?course_id=${course_id.to_deprecated_string()}"
+                tokenUrl: location.protocol+'//'+location.host+"/token?course_id=${course_key.to_deprecated_string()}"
             },
             store: {
                 // The endpoint of the store on your server.