DialogBrowserTest implementation to invoke Content settings bubble dialogs.

chrome/browser/ui/views/location_bar/location_bar_view.h

Index: chrome/browser/ui/views/location_bar/location_bar_view.h
diff --git a/chrome/browser/ui/views/location_bar/location_bar_view.h b/chrome/browser/ui/views/location_bar/location_bar_view.h
index 1d9b7a4753254a4db0faf39c4626446364eb032b..766610218f1fd9c6aec4462714d097f496636ff7 100644
--- a/chrome/browser/ui/views/location_bar/location_bar_view.h
+++ b/chrome/browser/ui/views/location_bar/location_bar_view.h
@@ -30,6 +30,7 @@
 #include "ui/views/drag_controller.h"
 
 class CommandUpdater;
+class ContentSettingBubbleDialogTest;
 class ContentSettingBubbleModelDelegate;
 class ContentSettingImageView;
 class ExtensionAction;
@@ -255,6 +256,7 @@ class LocationBarView : public LocationBar,
  private:
   using ContentSettingViews = std::vector<ContentSettingImageView*>;
 
+  friend class ContentSettingBubbleDialogTest;
   friend class PageActionImageView;
   friend class PageActionWithBadgeView;
   using PageActions = std::vector<ExtensionAction*>;
@@ -363,6 +365,8 @@ class LocationBarView : public LocationBar,
   ExtensionAction* GetVisiblePageAction(size_t index) override;
   void TestPageActionPressed(size_t index) override;
   bool GetBookmarkStarVisibility() override;
+  int ContentSettingImageModelCount() override;
+  ContentSettingImageModel* GetContentSettingImageModel(size_t index) override;
 
   // views::View:
   const char* GetClassName() const override;
@@ -393,6 +397,11 @@ class LocationBarView : public LocationBar,
   // TemplateURLServiceObserver:
   void OnTemplateURLServiceChanged() override;
 
+  // For a given ContentSettingImageModel, return the corresponding
+  // ContentSettingImageView.
+  ContentSettingImageView* GetContentSettingImageViewFromImageModel(
+      ContentSettingImageModel* image_model);
+
   // The Browser this LocationBarView is in.  Note that at least
   // chromeos::SimpleWebViewDialog uses a LocationBarView outside any browser
   // window, so this may be NULL.