optimize low-hanging fruit found using traceview

* View.getTag/setTag is a slow way of finding an overlay view;
  switch to a SparseArray
* this also obsoletes mChildrenToRemove since we can immediately
  remove overlays from the SparseArray
* bring back the Email Address cache to avoid repeated parsing
* avoid repeatedly calling findViewById for each header
* cache expensive timestamps and recipient summary strings

Change-Id: Ic76265848e4956a28a44c4a2e3e726ec9ef6bfaf

1 files changed, 0 insertions, 19 deletions

diff --git a/res/values/ids.xml b/res/values/ids.xml
deleted file mode 100644
index b2d77dbb7..000000000
--- a/res/values/ids.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2012 The Android Open Source Project
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
-
-<resources>
-    <item type="id" name="view_tag_conversation_index" />
-</resources>