Drop raises annotations support.

tools/dom/scripts/dartgenerator.py

Index: tools/dom/scripts/dartgenerator.py
diff --git a/tools/dom/scripts/dartgenerator.py b/tools/dom/scripts/dartgenerator.py
index fdac363518c8b48a7f918e11d908944335e11d5c..4fd476cba9b364feb0b5fe33b20c2209a3e2b926 100755
--- a/tools/dom/scripts/dartgenerator.py
+++ b/tools/dom/scripts/dartgenerator.py
@@ -165,10 +165,6 @@ class DartGenerator(object):
         continue
       interfaces.append(interface)
 
-    # TODO(sra): Use this list of exception names to generate information to
-    # tell dart2js which exceptions can be passed from JS to Dart code.
-    exceptions = self._CollectExceptions(interfaces)
-
     # Render all interfaces into Dart and save them in files.
     for interface in self._PreOrderInterfaces(interfaces):
       interface_name = interface.id
@@ -201,21 +197,6 @@ class DartGenerator(object):
       visit(interface)
     return ordered
 
-  def _CollectExceptions(self, interfaces):
-    """Returns the names of all exception classes raised."""
-    exceptions = set()
-    for interface in interfaces:
-      for attribute in interface.attributes:
-        if attribute.get_raises:
-          exceptions.add(attribute.get_raises.id)
-        if attribute.set_raises:
-          exceptions.add(attribute.set_raises.id)
-      for operation in interface.operations:
-        if operation.raises:
-          exceptions.add(operation.raises.id)
-    return exceptions
-
-
   def FixEventTargets(self, database):
     for interface in database.GetInterfaces():
       # Create fake EventTarget parent interface for interfaces that have