Abstract base 'ExtensionView' to Fix DEPS violation in extension_view_host.h

chrome/browser/ui/views/extensions/extension_popup.cc

Index: chrome/browser/ui/views/extensions/extension_popup.cc
diff --git a/chrome/browser/ui/views/extensions/extension_popup.cc b/chrome/browser/ui/views/extensions/extension_popup.cc
index 9fa93b83a5e64e1ed6a4876c0bb1eb91e8051f62..5e7aa8a2598b6aff3ea975d372fd674cfae4eca0 100644
--- a/chrome/browser/ui/views/extensions/extension_popup.cc
+++ b/chrome/browser/ui/views/extensions/extension_popup.cc
@@ -51,8 +51,8 @@ ExtensionPopup::ExtensionPopup(extensions::ExtensionViewHost* host,
   const int margin = views::BubbleBorder::GetCornerRadius() / 2;
   set_margins(gfx::Insets(margin, margin, margin, margin));
   SetLayoutManager(new views::FillLayout());
-  AddChildView(host->view());
-  host->view()->set_container(this);
+  AddChildView(GetExtensionView());
+  GetExtensionView()->set_container(this);
   // ExtensionPopup closes itself on very specific de-activation conditions.
   set_close_on_deactivate(false);
 
@@ -66,14 +66,14 @@ ExtensionPopup::ExtensionPopup(extensions::ExtensionViewHost* host,
   content::DevToolsManager::GetInstance()->AddAgentStateCallback(
       devtools_callback_);
 
-  host_->view()->browser()->tab_strip_model()->AddObserver(this);
+  GetExtensionView()->GetBrowser()->tab_strip_model()->AddObserver(this);
 }
 
 ExtensionPopup::~ExtensionPopup() {
   content::DevToolsManager::GetInstance()->RemoveAgentStateCallback(
       devtools_callback_);
 
-  host_->view()->browser()->tab_strip_model()->RemoveObserver(this);
+  GetExtensionView()->GetBrowser()->tab_strip_model()->RemoveObserver(this);
 }
 
 void ExtensionPopup::Observe(int type,
@@ -114,6 +114,10 @@ void ExtensionPopup::OnDevToolsStateChanged(
   }
 }
 
+ExtensionViewViews* ExtensionPopup::GetExtensionView() {
+  return static_cast<ExtensionViewViews*>(host()->view());
+}
+
 void ExtensionPopup::OnExtensionSizeChanged(ExtensionViewViews* view) {
   SizeToContents();
 }