Add debug class names to HostedAppButtonContainer and HostedAppMenuButton

These names are useful when printing out the views hierarchy while
debugging.

Change-Id: Ie574d464c68e8bfb83af06a970f96efc655c912b
Reviewed-on: https://chromium-review.googlesource.com/1127507Reviewed-by: Michael Wasserman <msw@chromium.org>
Commit-Queue: Alan Cutter <alancutter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575131}

chrome/browser/ui/views/frame/hosted_app_button_container.cc

@@ -271,6 +271,10 @@ void HostedAppButtonContainer::ChildVisibilityChanged(views::View* child) {
   PreferredSizeChanged();
 }
 
+const char* HostedAppButtonContainer::GetClassName() const {
+  return "HostedAppButtonContainer";
+}
+
 views::MenuButton* HostedAppButtonContainer::GetOverflowReferenceView() {
   return app_menu_button_;
 }

chrome/browser/ui/views/frame/hosted_app_button_container.h

@@ -74,6 +74,7 @@ class HostedAppButtonContainer : public views::AccessiblePaneView,
   // views::View:
   void ChildPreferredSizeChanged(views::View* child) override;
   void ChildVisibilityChanged(views::View* child) override;
+  const char* GetClassName() const override;
 
   // BrowserActionsContainer::Delegate:
   views::MenuButton* GetOverflowReferenceView() override;

chrome/browser/ui/views/frame/hosted_app_menu_button.cc

@@ -78,3 +78,7 @@ void HostedAppMenuButton::FadeHighlightOff() {
     GetInkDrop()->UseDefaultHoverHighlightFadeDuration();
   }
 }
+
+const char* HostedAppMenuButton::GetClassName() const {
+  return "HostedAppMenuButton";
+}

chrome/browser/ui/views/frame/hosted_app_menu_button.h

@@ -37,6 +37,9 @@ class HostedAppMenuButton : public AppMenuButton,
  private:
   void FadeHighlightOff();
 
+  // views::View:
+  const char* GetClassName() const override;
+
   // The containing browser view.
   BrowserView* browser_view_;