Remove unused set_enabled() method in ThumbnailTabHelper.

This is no longer used as of https://codereview.chromium.org/1432603005

Review URL: https://codereview.chromium.org/1419823016

Cr-Commit-Position: refs/heads/master@{#359873}

2 files changed, 0 insertions, 10 deletions

diff --git a/chrome/browser/thumbnails/thumbnail_tab_helper.cc b/chrome/browser/thumbnails/thumbnail_tab_helper.cc
index ec042d8..20d6cf0 100644
--- a/chrome/browser/thumbnails/thumbnail_tab_helper.cc
+++ b/chrome/browser/thumbnails/thumbnail_tab_helper.cc
@@ -126,7 +126,6 @@ void AsyncProcessThumbnail(scoped_refptr<ThumbnailingContext> context,
 
 ThumbnailTabHelper::ThumbnailTabHelper(content::WebContents* contents)
     : content::WebContentsObserver(contents),
-      enabled_(true),
       load_interrupted_(false) {
   // Even though we deal in RenderWidgetHosts, we only care about its
   // subclass, RenderViewHost when it is in a tab. We don't make thumbnails
@@ -229,7 +228,5 @@ void ThumbnailTabHelper::RenderViewHostCreated(
 }
 
 void ThumbnailTabHelper::WidgetHidden(RenderWidgetHost* widget) {
-  if (!enabled_)
-    return;
   UpdateThumbnailIfNecessary(web_contents());
 }
diff --git a/chrome/browser/thumbnails/thumbnail_tab_helper.h b/chrome/browser/thumbnails/thumbnail_tab_helper.h
index 8e97064..ae13bbb 100644
--- a/chrome/browser/thumbnails/thumbnail_tab_helper.h
+++ b/chrome/browser/thumbnails/thumbnail_tab_helper.h
@@ -25,11 +25,6 @@ class ThumbnailTabHelper
  public:
   ~ThumbnailTabHelper() override;
 
-  // Enables or disables the function of taking thumbnails.
-  // A disabled ThumbnailTabHelper generates no thumbnails although it still
-  // continues to receive the notifications from the web contents.
-  void set_enabled(bool enabled) { enabled_ = enabled; }
-
  private:
   explicit ThumbnailTabHelper(content::WebContents* contents);
   friend class content::WebContentsUserData<ThumbnailTabHelper>;
@@ -53,8 +48,6 @@ class ThumbnailTabHelper
   // Indicates that the given widget has changed is visibility.
   void WidgetHidden(content::RenderWidgetHost* widget);
 
-  bool enabled_;
-
   content::NotificationRegistrar registrar_;
 
   bool load_interrupted_;