LabelButton: SetAccessibleName on SetText; update test.

ui/views/controls/button/label_button.cc

Index: ui/views/controls/button/label_button.cc
diff --git a/ui/views/controls/button/label_button.cc b/ui/views/controls/button/label_button.cc
index 6ca6a98194017f3476d310474ed5df20cbee658a..af3fb3fbb9e985ab2524b55200d466327dfeacf8 100644
--- a/ui/views/controls/button/label_button.cc
+++ b/ui/views/controls/button/label_button.cc
@@ -35,13 +35,14 @@ const char LabelButton::kViewClassName[] = "views/LabelButton";
 LabelButton::LabelButton(ButtonListener* listener, const string16& text)
     : CustomButton(listener),
       image_(new ImageView()),
-      label_(new Label(text)),
+      label_(new Label()),

[tfarina, 2013/04/05 12:44:27]

you don't pass it through constructor anymore, because you call SetText() below,
right?

[msw, 2013/04/05 15:04:17]

yes

       button_state_images_(),
       button_state_colors_(),
       explicitly_set_colors_(),
       is_default_(false),
       style_(STYLE_TEXTBUTTON) {
   SetAnimationDuration(kHoverAnimationDurationMs);
+  SetText(text);
 
   AddChildView(image_);
   image_->set_interactive(false);
@@ -72,6 +73,7 @@ const string16& LabelButton::GetText() const {
 }
 
 void LabelButton::SetText(const string16& text) {
+  SetAccessibleName(text);
   label_->SetText(text);
 }