win: Add support for CPUTimes and StartTime to snapshot

snapshot/win/process_reader_win.h

Index: snapshot/win/process_reader_win.h
diff --git a/snapshot/win/process_reader_win.h b/snapshot/win/process_reader_win.h
index b570a5e82c6b27dfce2ba3649360f38dd48b576c..ff687885b5483ec2126d451481ca867928c4e4f1 100644
--- a/snapshot/win/process_reader_win.h
+++ b/snapshot/win/process_reader_win.h
@@ -15,6 +15,7 @@
 #ifndef CRASHPAD_SNAPSHOT_WIN_PROCESS_READER_WIN_H_
 #define CRASHPAD_SNAPSHOT_WIN_PROCESS_READER_WIN_H_
 
+#include <sys/time.h>
 #include <windows.h>
 
 #include "util/misc/initialization_state_dcheck.h"
@@ -48,6 +49,23 @@ class ProcessReaderWin {
 
   bool ReadMemory(WinVMAddress at, WinVMSize num_bytes, void* into);
 
+  //! \brief Determines the target process' start time.
+  //!
+  //! \param[out] start_time The time that the process started.
+  //!
+  //! \return `true` on success, `false` on failure, with a warning logged.
+  bool StartTime(timeval* start_time) const;
+
+  //! \brief Determines the target process' execution time.
+  //!
+  //! \param[out] user_time The amount of time the process has executed code in
+  //!     user mode.
+  //! \param[out] system_time The amount of time the process has executed code
+  //!     in kernel mode.
+  //!
+  //! \return `true` on success, `false` on failure, with a warning logged.
+  bool CPUTimes(timeval* user_time, timeval* system_time) const;
+
   //! \return The modules loaded in the process. The first element (at index
   //!     `0`) corresponds to the main executable.
   const std::vector<ProcessInfo::Module>& Modules();