Move Extension Location and Type enums to Manifest, and move InstallWarning to its own file.

chrome/browser/ui/panels/panel_browsertest.cc

Index: chrome/browser/ui/panels/panel_browsertest.cc
diff --git a/chrome/browser/ui/panels/panel_browsertest.cc b/chrome/browser/ui/panels/panel_browsertest.cc
index 85bd89c84236e529be3a52cc87a263f2791724e2..cebd1bede09d7ad99964a87c481df12c4281cdf8 100644
--- a/chrome/browser/ui/panels/panel_browsertest.cc
+++ b/chrome/browser/ui/panels/panel_browsertest.cc
@@ -45,7 +45,6 @@
 #include "ui/gfx/screen.h"
 
 using content::WebContents;
-using extensions::Extension;
 
 class PanelBrowserTest : public BasePanelBrowserTest {
  public:
@@ -1440,7 +1439,7 @@ IN_PROC_BROWSER_TEST_F(PanelBrowserTest,
   DictionaryValue empty_value;
   scoped_refptr<Extension> extension =
       CreateExtension(FILE_PATH_LITERAL("TestExtension"),
-      Extension::INVALID, empty_value);
+                      extensions::Manifest::INVALID_LOCATION, empty_value);
   std::string extension_app_name =
       web_app::GenerateApplicationNameFromExtensionId(extension->id());
 
@@ -1466,7 +1465,7 @@ IN_PROC_BROWSER_TEST_F(PanelBrowserTest,
   // Create another extension and a panel from that extension.
   scoped_refptr<Extension> extension_other =
       CreateExtension(FILE_PATH_LITERAL("TestExtensionOther"),
-      Extension::INVALID, empty_value);
+                      extensions::Manifest::INVALID_LOCATION, empty_value);
   std::string extension_app_name_other =
       web_app::GenerateApplicationNameFromExtensionId(extension_other->id());
   Panel* panel_other = CreatePanel(extension_app_name_other);