Refactor UKM interface for mojo-ification

chrome/browser/browser_process.h

Index: chrome/browser/browser_process.h
diff --git a/chrome/browser/browser_process.h b/chrome/browser/browser_process.h
index cf07d9a0d1bce449bc8acc27b0083bdf4294c422..96d26749b40dbde89c0bd5cf242439a16c7ee4f4 100644
--- a/chrome/browser/browser_process.h
+++ b/chrome/browser/browser_process.h
@@ -119,7 +119,7 @@ class ClientSideDetectionService;
 }
 
 namespace ukm {
-class UkmService;
+class UkmRecorder;
 }
 
 // NOT THREAD SAFE, call only from the main thread.
@@ -146,7 +146,7 @@ class BrowserProcess {
   // Services: any of these getters may return NULL
   virtual metrics::MetricsService* metrics_service() = 0;
   virtual rappor::RapporServiceImpl* rappor_service() = 0;
-  virtual ukm::UkmService* ukm_service() = 0;
+  virtual ukm::UkmRecorder* ukm_recorder() = 0;
   virtual ProfileManager* profile_manager() = 0;
   virtual PrefService* local_state() = 0;
   virtual net::URLRequestContextGetter* system_request_context() = 0;