Integrate Crashpad UMA

components/crash/content/app/crash_reporter_client.h

Index: components/crash/content/app/crash_reporter_client.h
diff --git a/components/crash/content/app/crash_reporter_client.h b/components/crash/content/app/crash_reporter_client.h
index 70f089cf9dfe93fc527f5bf565a6bc890157d32d..545af4d0d86185ce15fca6c9fe3fe6db2eb79474 100644
--- a/components/crash/content/app/crash_reporter_client.h
+++ b/components/crash/content/app/crash_reporter_client.h
@@ -128,6 +128,14 @@ class CrashReporterClient {
   virtual bool GetCrashDumpLocation(base::FilePath* crash_dir);
 #endif
 
+  // The location where metrics files should be written. Returns true if
+  // |metrics_dir| was set.
+#if defined(OS_WIN)
+  virtual bool GetCrashMetricsLocation(base::string16* metrics_dir);
+#else
+  virtual bool GetCrashMetricsLocation(base::FilePath* metrics_dir);
+#endif
+
   // Register all of the potential crash keys that can be sent to the crash
   // reporting server. Returns the size of the union of all keys.
   virtual size_t RegisterCrashKeys();