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

chrome/browser/extensions/extension_view_host_mac.mm

Index: chrome/browser/extensions/extension_view_host_mac.mm
diff --git a/chrome/browser/extensions/extension_view_host_mac.mm b/chrome/browser/extensions/extension_view_host_mac.mm
index 278a3b9457e89c13e99f151fa0de39ac83b0550e..5db8071e9dc10ad818f0eb1dd006cf82e829cc04 100644
--- a/chrome/browser/extensions/extension_view_host_mac.mm
+++ b/chrome/browser/extensions/extension_view_host_mac.mm
@@ -8,9 +8,6 @@
 #import "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
 #import "chrome/browser/ui/cocoa/extensions/extension_popup_controller.h"
 #import "chrome/browser/ui/cocoa/info_bubble_window.h"
-#include "content/public/browser/native_web_keyboard_event.h"
-
-using content::NativeWebKeyboardEvent;
 
 namespace extensions {
 
@@ -25,18 +22,4 @@ ExtensionViewHostMac::~ExtensionViewHostMac() {
   }
 }
 
-void ExtensionViewHostMac::UnhandledKeyboardEvent(
-    content::WebContents* source,
-    const NativeWebKeyboardEvent& event) {
-  if (event.skip_in_browser || event.type == NativeWebKeyboardEvent::Char ||
-      extension_host_type() != VIEW_TYPE_EXTENSION_POPUP) {
-    return;
-  }
-
-  ChromeEventProcessingWindow* event_window =
-      static_cast<ChromeEventProcessingWindow*>([view()->native_view() window]);
-  DCHECK([event_window isKindOfClass:[ChromeEventProcessingWindow class]]);
-  [event_window redispatchKeyEvent:event.os_event];
-}
-
 }  // namespace extensions