Split UserMetrics into API vs. implementation. Move API to content/public.

chrome/browser/ui/webui/flash_ui.cc

Index: chrome/browser/ui/webui/flash_ui.cc
diff --git a/chrome/browser/ui/webui/flash_ui.cc b/chrome/browser/ui/webui/flash_ui.cc
index 1bf0cd3df5344a85fa9490e209a35ea786d4c4ad..cdcd6f38a490ca27c3e9e6d23ad40621959dcf79 100644
--- a/chrome/browser/ui/webui/flash_ui.cc
+++ b/chrome/browser/ui/webui/flash_ui.cc
@@ -29,7 +29,7 @@
 #include "content/browser/gpu/gpu_data_manager.h"
 #include "content/browser/plugin_service.h"
 #include "content/browser/tab_contents/tab_contents.h"
-#include "content/browser/user_metrics.h"
+#include "content/public/browser/user_metrics.h"
 #include "grit/browser_resources.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
@@ -42,6 +42,8 @@
 #include "base/win/windows_version.h"
 #endif
 
+using content::UserMetricsAction;
+
 namespace {
 
 ChromeWebUIDataSource* CreateFlashUIHTMLSource() {
@@ -362,7 +364,7 @@ void FlashDOMHandler::MaybeRespondToPage() {
 ///////////////////////////////////////////////////////////////////////////////
 
 FlashUI::FlashUI(TabContents* contents) : ChromeWebUI(contents) {
-  UserMetrics::RecordAction(
+  content::RecordAction(
       UserMetricsAction("ViewAboutFlash"));
 
   AddMessageHandler((new FlashDOMHandler())->Attach(this));