Moving extension code out of "components/" to avoid layering violations.

chrome/browser/guest_view/web_view/context_menu_content_type_web_view.cc

Index: chrome/browser/guest_view/web_view/context_menu_content_type_web_view.cc
diff --git a/chrome/browser/guest_view/web_view/context_menu_content_type_web_view.cc b/chrome/browser/guest_view/web_view/context_menu_content_type_web_view.cc
index c8f60cdbb2c5f78ec07027476e7c4785506be4c1..9a3a9d5dee9a2112f6b1f57134532c76412b0125 100644
--- a/chrome/browser/guest_view/web_view/context_menu_content_type_web_view.cc
+++ b/chrome/browser/guest_view/web_view/context_menu_content_type_web_view.cc
@@ -8,9 +8,13 @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_version_info.h"
 #include "extensions/browser/guest_view/web_view/web_view_guest.h"
+#include "extensions/browser/process_manager.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest.h"
 
+using extensions::Extension;
+using extensions::ProcessManager;
+
 ContextMenuContentTypeWebView::ContextMenuContentTypeWebView(
     content::WebContents* web_contents,
     const content::ContextMenuParams& params)
@@ -20,6 +24,13 @@ ContextMenuContentTypeWebView::ContextMenuContentTypeWebView(
 ContextMenuContentTypeWebView::~ContextMenuContentTypeWebView() {
 }
 
+const Extension* ContextMenuContentTypeWebView::GetExtension() const {
+  ProcessManager* process_manager =
+      ProcessManager::Get(source_web_contents()->GetBrowserContext());
+  return process_manager->GetExtensionForWebContents(
+      source_web_contents());
+}
+
 bool ContextMenuContentTypeWebView::SupportsGroup(int group) {
   switch (group) {
     case ITEM_GROUP_PAGE: