Conservative update button/label/textfield content

ui/views/controls/button/text_button.cc

Index: ui/views/controls/button/text_button.cc
diff --git a/ui/views/controls/button/text_button.cc b/ui/views/controls/button/text_button.cc
index 1a4c4e700cadce959305fb9e01ea9af2caf37e65..5e2634fd4628fbfdb65e3fc306dff41c2730fe8f 100644
--- a/ui/views/controls/button/text_button.cc
+++ b/ui/views/controls/button/text_button.cc
@@ -291,9 +291,11 @@ void TextButtonBase::SetIsDefault(bool is_default) {
 }
 
 void TextButtonBase::SetText(const string16& text) {
-  text_ = text;
-  SetAccessibleName(text);
-  UpdateTextSize();
+  if (text != text_) {

[Daniel Erat, 2012/09/11 20:53:37]

nit: just:

  if (text == text_)
    return;

and then unindent the rest?

+    text_ = text;
+    SetAccessibleName(text);
+    UpdateTextSize();
+  }
 }
 
 void TextButtonBase::SetFont(const gfx::Font& font) {