Integrate Crashpad UMA

third_party/crashpad/crashpad/client/crashpad_client.h

Index: third_party/crashpad/crashpad/client/crashpad_client.h
diff --git a/third_party/crashpad/crashpad/client/crashpad_client.h b/third_party/crashpad/crashpad/client/crashpad_client.h
index 61338a3c5f72a30a0702cfe05dcaff53e10ed768..f8f1a612ea51d0cd4a94abfe77776a9c92aec3c1 100644
--- a/third_party/crashpad/crashpad/client/crashpad_client.h
+++ b/third_party/crashpad/crashpad/client/crashpad_client.h
@@ -55,6 +55,9 @@ class CrashpadClient {
   //! \param[in] handler The path to a Crashpad handler executable.
   //! \param[in] database The path to a Crashpad database. The handler will be
   //!     started with this path as its `--database` argument.
+  //! \param[in] metrics_dir The path to an already existing directory where
+  //!     metrics files can be stored. The handler will be started with this
+  //!     path as its `--metrics-dir` argument.
   //! \param[in] url The URL of an upload server. The handler will be started
   //!     with this URL as its `--url` argument.
   //! \param[in] annotations Process annotations to set in each crash report.
@@ -72,6 +75,7 @@ class CrashpadClient {
   //! \return `true` on success, `false` on failure with a message logged.
   bool StartHandler(const base::FilePath& handler,
                     const base::FilePath& database,
+                    const base::FilePath& metrics_dir,
                     const std::string& url,
                     const std::map<std::string, std::string>& annotations,
                     const std::vector<std::string>& arguments,