Move c/r/extensions/* into extensions namespace

chrome/test/base/chrome_render_view_test.h

Index: chrome/test/base/chrome_render_view_test.h
diff --git a/chrome/test/base/chrome_render_view_test.h b/chrome/test/base/chrome_render_view_test.h
index 5a3822c348c9d6dc611eefd5e723a91c95bf260d..c86af878e18847c6ec3cda0a0e19432073961636 100644
--- a/chrome/test/base/chrome_render_view_test.h
+++ b/chrome/test/base/chrome_render_view_test.h
@@ -12,13 +12,15 @@
 #include "chrome/renderer/chrome_content_renderer_client.h"
 #include "content/public/test/render_view_test.h"
 
-class ExtensionDispatcher;
-
 namespace autofill {
 class AutofillAgent;
 class PasswordAutofillManager;
 }
 
+namespace extensions {
+class Dispatcher;
+}
+
 class ChromeRenderViewTest : public content::RenderViewTest {
  public:
   ChromeRenderViewTest();
@@ -30,7 +32,7 @@ class ChromeRenderViewTest : public content::RenderViewTest {
   virtual void TearDown() OVERRIDE;
 
   chrome::ChromeContentRendererClient chrome_content_renderer_client_;
-  ExtensionDispatcher* extension_dispatcher_;
+  extensions::Dispatcher* extension_dispatcher_;
 
   autofill::PasswordAutofillManager* password_autofill_;
   autofill::AutofillAgent* autofill_agent_;