Move Navigation.MainFrameScheme UMA recording to //components.

chrome/browser/tab_contents/navigation_metrics_recorder.cc

Index: chrome/browser/tab_contents/navigation_metrics_recorder.cc
diff --git a/chrome/browser/tab_contents/navigation_metrics_recorder.cc b/chrome/browser/tab_contents/navigation_metrics_recorder.cc
index f1475d1edf555211d39a8cc76883d8ed51dd6476..25ad6b38a43e9490a51848bb3d6812d9439db926 100644
--- a/chrome/browser/tab_contents/navigation_metrics_recorder.cc
+++ b/chrome/browser/tab_contents/navigation_metrics_recorder.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/tab_contents/navigation_metrics_recorder.h"
 
 #include "base/metrics/histogram.h"
+#include "components/navigation_metrics/navigation_metrics.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_view_host.h"
@@ -17,52 +18,6 @@
 
 DEFINE_WEB_CONTENTS_USER_DATA_KEY(NavigationMetricsRecorder);
 
-namespace {
-
-enum Scheme {
-  SCHEME_UNKNOWN,
-  SCHEME_HTTP,
-  SCHEME_HTTPS,
-  SCHEME_FILE,
-  SCHEME_FTP,
-  SCHEME_DATA,
-  SCHEME_JAVASCRIPT,
-  SCHEME_ABOUT,
-  SCHEME_CHROME,
-  SCHEME_MAX,
-};
-
-static const char* kSchemeNames[] = {
-  "unknown",
-  "http",
-  "https",
-  "file",
-  "ftp",
-  "data",
-  "javascript",
-  "about",
-  "chrome",
-  "max",
-};
-
-COMPILE_ASSERT(arraysize(kSchemeNames) == SCHEME_MAX + 1,
-               NavigationMetricsRecorder_name_count_mismatch);
-
-void RecordMainFrameNavigation(const content::LoadCommittedDetails& details) {
-  GURL url = details.entry->GetVirtualURL();
-  Scheme scheme = SCHEME_UNKNOWN;
-  for (int i = 1; i < SCHEME_MAX; ++i) {
-    if (url.SchemeIs(kSchemeNames[i])) {
-      scheme = static_cast<Scheme>(i);
-      break;
-    }
-  }
-  UMA_HISTOGRAM_ENUMERATION(
-      "Navigation.MainFrameScheme", scheme, SCHEME_MAX);
-}
-
-}  // namespace
-
 NavigationMetricsRecorder::NavigationMetricsRecorder(
     content::WebContents* web_contents)
     : content::WebContentsObserver(web_contents) {
@@ -74,7 +29,7 @@ NavigationMetricsRecorder::~NavigationMetricsRecorder() {
 void NavigationMetricsRecorder::DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) {
-  RecordMainFrameNavigation(details);
+  navigation_metrics::RecordMainFrameNavigation(details.entry->GetVirtualURL());
 }
 
 void NavigationMetricsRecorder::DidStartLoading(