Autofill - get rid of one more RenderViewObserver method.

chrome/browser/ui/autofill/chrome_autofill_client.h

Index: chrome/browser/ui/autofill/chrome_autofill_client.h
diff --git a/chrome/browser/ui/autofill/chrome_autofill_client.h b/chrome/browser/ui/autofill/chrome_autofill_client.h
index 42395b062a1b5d279d249506bb75c267b258d6fd..e3e53b0aa46a697b825c18941285783914d03868 100644
--- a/chrome/browser/ui/autofill/chrome_autofill_client.h
+++ b/chrome/browser/ui/autofill/chrome_autofill_client.h
@@ -10,10 +10,13 @@
 #include "base/i18n/rtl.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/scoped_observer.h"
 #include "components/autofill/core/browser/autofill_client.h"
 #include "components/ui/zoom/zoom_observer.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
+#include "ui/gfx/display_observer.h"
+#include "ui/gfx/screen.h"
 
 namespace content {
 struct FrameNavigateParams;
@@ -34,7 +37,8 @@ class ChromeAutofillClient
     : public AutofillClient,
       public content::WebContentsUserData<ChromeAutofillClient>,
       public content::WebContentsObserver,
-      public ui_zoom::ZoomObserver {
+      public ui_zoom::ZoomObserver,
+      public gfx::DisplayObserver {
  public:
   ~ChromeAutofillClient() override;
 
@@ -78,6 +82,12 @@ class ChromeAutofillClient
   void OnZoomChanged(
       const ui_zoom::ZoomController::ZoomChangedEventData& data) override;
 
+  // gfx::DisplayObserver implementation.
+  void OnDisplayAdded(const gfx::Display& new_display) override;
+  void OnDisplayRemoved(const gfx::Display& old_display) override;
+  void OnDisplayMetricsChanged(const gfx::Display& display,
+                               uint32_t changed_metrics) override;
+
   // Exposed for testing.
   AutofillDialogController* GetDialogControllerForTesting() {
     return dialog_controller_.get();
@@ -118,6 +128,8 @@ class ChromeAutofillClient
 
   base::WeakPtrFactory<ChromeAutofillClient> weak_pointer_factory_;
 
+  ScopedObserver<gfx::Screen, gfx::DisplayObserver> screen_observer_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeAutofillClient);
 };