Remove redundant SchedulePaint call.

The TabIcon will schedule its own painting when its state changes.

This call was left from a previous iteration where it did not do so.

Bug: 778461
Change-Id: I351f2c2e6e11c9ab942c98ccb3e002fd8cbfb67f
Reviewed-on: https://chromium-review.googlesource.com/804239Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Brett Wilson <brettw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#521098}

chrome/browser/ui/views/tabs/tab.cc

@@ -314,7 +314,6 @@ void Tab::SetData(TabRendererData data) {
     icon_->SetAttention(TabIcon::AttentionType::kBlockedWebContents,
                         data_.blocked);
   }
-  icon_->SchedulePaint();
 
   base::string16 title = data_.title;
   if (title.empty()) {