Don't show "Inspect Element" in the context menu if we can't inspect.

chrome/browser/views/toolbar_view.cc

Index: chrome/browser/views/toolbar_view.cc
diff --git a/chrome/browser/views/toolbar_view.cc b/chrome/browser/views/toolbar_view.cc
index 6d0b8cf8cf30539cd7ab1dbde9cb202ebb2e7c7c..115f4679736ce51f2a7fb07b745c846dd426707e 100644
--- a/chrome/browser/views/toolbar_view.cc
+++ b/chrome/browser/views/toolbar_view.cc
@@ -1046,8 +1046,10 @@ void ToolbarView::CreateDevToolsMenuContents() {
   devtools_menu_contents_.reset(new views::SimpleMenuModel(this));
   devtools_menu_contents_->AddItem(IDC_VIEW_SOURCE,
                                    l10n_util::GetString(IDS_VIEW_SOURCE));
-  devtools_menu_contents_->AddItem(IDC_DEV_TOOLS,
-                                   l10n_util::GetString(IDS_DEV_TOOLS));
+  if (g_browser_process->have_inspector_files()) {
+    devtools_menu_contents_->AddItem(IDC_DEV_TOOLS,
+                                     l10n_util::GetString(IDS_DEV_TOOLS));
+  }
   devtools_menu_contents_->AddItem(IDC_TASK_MANAGER,
                                    l10n_util::GetString(IDS_TASK_MANAGER));
 }