Instantiate a Kasko reporter inside the Chrome watcher process, when SyzyASAN instrumented.

chrome/chrome_watcher/chrome_watcher_main_api.cc

Index: chrome/chrome_watcher/chrome_watcher_main_api.cc
diff --git a/chrome/chrome_watcher/chrome_watcher_main_api.cc b/chrome/chrome_watcher/chrome_watcher_main_api.cc
index 2c41cd53aef572effd36088012605f70b2d42136..e8b29e162161388ff93dad1a719c5a9979fc49fc 100644
--- a/chrome/chrome_watcher/chrome_watcher_main_api.cc
+++ b/chrome/chrome_watcher/chrome_watcher_main_api.cc
@@ -3,7 +3,14 @@
 // found in the LICENSE file.
 
 #include "chrome/chrome_watcher/chrome_watcher_main_api.h"
+#include "base/strings/string_number_conversions.h"
 
 const base::FilePath::CharType kChromeWatcherDll[] =
     FILE_PATH_LITERAL("chrome_watcher.dll");
 const char kChromeWatcherDLLEntrypoint[] = "WatcherMain";
+const base::FilePath::CharType kPermanentlyFailedReportsSubdir[] =
+    L"Crash Reports Fallback";
+
+base::string16 GetKaskoEndpoint(base::ProcessId client_process_id) {
+  return L"chrome_kasko_" + base::UintToString16(client_process_id);
+}