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

chrome/chrome_watcher/chrome_watcher_main_api.h

Index: chrome/chrome_watcher/chrome_watcher_main_api.h
diff --git a/chrome/chrome_watcher/chrome_watcher_main_api.h b/chrome/chrome_watcher/chrome_watcher_main_api.h
index 22dbf9b18ce21a825607d4118d94c1e28d9fe3fd..7b48f82f667507ab348fe8c80fcba0c79fda26e0 100644
--- a/chrome/chrome_watcher/chrome_watcher_main_api.h
+++ b/chrome/chrome_watcher/chrome_watcher_main_api.h
@@ -7,20 +7,33 @@
 
 #include <Windows.h>
 #include "base/files/file_path.h"
+#include "base/process/process_handle.h"
 #include "base/strings/string16.h"
 
 // The name of the watcher DLL.
 extern const base::FilePath::CharType kChromeWatcherDll[];
 // The name of the watcher DLLs entrypoint function.
 extern const char kChromeWatcherDLLEntrypoint[];
+// The subdirectory of the browser data directory where permanently failed crash
+// reports will be stored.
+extern const base::FilePath::CharType kPermanentlyFailedReportsSubdir[];
 
 // The type of the watcher DLL's main entry point.
 // Watches |parent_process| and records its exit code under |registry_path| in
-// HKCU. |on_initialized_event| will be signaled once the process is fully
-// initialized. Takes ownership of |parent_process| and |on_initialized_event|.
+// HKCU. If SyzyASAN is enabled, a Kasko reporter process is also instantiated,
+// using |browser_data_directory| to store crash reports. |on_initialized_event|
+// will be signaled once the process is fully initialized. Takes ownership of
+// |parent_process| and |on_initialized_event|.
 typedef int (*ChromeWatcherMainFunction)(
     const base::char16* registry_path,
     HANDLE parent_process,
-    HANDLE on_initialized_event);
+    HANDLE on_initialized_event,
+    const base::char16* browser_data_directory);
+
+// Returns an RPC endpoint name for the identified client process. This method
+// may be invoked in both the client and the watcher process with the PID of the
+// client process to establish communication between the two using a common
+// endpoint name.
+base::string16 GetKaskoEndpoint(base::ProcessId client_process_id);
 
 #endif  // CHROME_CHROME_WATCHER_CHROME_WATCHER_MAIN_API_H_