Remove the Kasko based out of process browser hang instrumentation.

chrome/browser/process_singleton_win.cc

Index: chrome/browser/process_singleton_win.cc
diff --git a/chrome/browser/process_singleton_win.cc b/chrome/browser/process_singleton_win.cc
index c46ea99b9c763b722df21fe2a6a500701c2ea230..210cf15d55536558a40264a6576a21bad4b30f2b 100644
--- a/chrome/browser/process_singleton_win.cc
+++ b/chrome/browser/process_singleton_win.cc
@@ -13,7 +13,6 @@
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
-#include "base/path_service.h"
 #include "base/process/process.h"
 #include "base/process/process_info.h"
 #include "base/strings/string_number_conversions.h"
@@ -28,27 +27,17 @@
 #include "chrome/browser/chrome_process_finder_win.h"
 #include "chrome/browser/shell_integration.h"
 #include "chrome/browser/ui/simple_message_box.h"
-#include "chrome/common/channel_info.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_paths_internal.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/grit/chromium_strings.h"
-#include "chrome/installer/util/google_update_settings.h"
-#include "chrome/installer/util/util_constants.h"
 #include "chrome/installer/util/wmi.h"
-#include "components/version_info/version_info.h"
 #include "content/public/common/result_codes.h"
 #include "net/base/escape.h"
-#include "third_party/kasko/kasko_features.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/win/hwnd_util.h"
 
-#if BUILDFLAG(ENABLE_KASKO_FAILED_RDV_REPORTS)
-#include "chrome/app/chrome_crash_reporter_client_win.h"
-#include "chrome/chrome_watcher/kasko_util.h"
-#endif  // BUILDFLAG(ENABLE_KASKO_FAILED_RDV_REPORTS)
-
 namespace {
 
 const char kLockfile[] = "lockfile";
@@ -191,67 +180,6 @@ bool DisplayShouldKillMessageBox() {
          chrome::MESSAGE_BOX_RESULT_NO;
 }
 
-#if BUILDFLAG(ENABLE_KASKO_FAILED_RDV_REPORTS)
-// Capture a failed rendez-vous hang report of the other process. Kasko needs
-// the exception context to live either in the dumper or the dumpee. This
-// means we cannot rely on kasko reporters from either browser watcher, and
-// instead spin up a new reporter.
-void SendFailedRdvReport(const base::Process& process, DWORD thread_id) {
-  // Check whether reports can be uploaded. This involves checking group policy,
-  // stats collection consent and whether running on a bot. The correct approach
-  // would be to rely on crash_reporter::GetUploadsEnabled(). However, on
-  // Windows, the crash client is only expected to be linked into chrome.exe
-  // (not the dlls). That means CrashPad globals are not set and we cannot call
-  // crash_reporter::GetUploadsEnabled(). As a temporary measure until Kasko is
-  // no longer used, we duplicate CrashPad's logic here.
-  ChromeCrashReporterClient crash_reporter_client;
-
-  bool enable_uploads = false;
-  if (!crash_reporter_client.ReportingIsEnforcedByPolicy(&enable_uploads)) {
-    // Breakpad provided a --disable-breakpad switch to disable crash dumping
-    // (not just uploading) here. Crashpad doesn't need it: dumping is enabled
-    // unconditionally and uploading is gated on consent, which tests/bots
-    // shouldn't have. As a precaution, uploading is also disabled on bots
-    // even if consent is present.
-    enable_uploads = crash_reporter_client.GetCollectStatsConsent() &&
-                     !crash_reporter_client.IsRunningUnattended();
-  }
-
-  if (!enable_uploads)
-    return;
-
-  // TODO(manzagop): add a metric for the number of captured hang reports, for
-  //   comparison with uploaded count?
-
-  // Only report on canary.
-  if (chrome::GetChannel() != version_info::Channel::CANARY) {
-    return;
-  }
-  // TODO(manzagop): add a metric for the number of times this does not match.
-  if (!EnsureTargetProcessValidForCapture(process))
-    return;
-
-  // Initialize a reporter, capture a report and shutdown the reporter.
-  base::FilePath watcher_data_directory;
-  if (PathService::Get(chrome::DIR_WATCHER_DATA, &watcher_data_directory)) {
-    base::string16 endpoint =
-        L"chrome_kasko_rdv_" +
-        base::UintToString16(base::Process::Current().Pid());
-
-    bool launched_kasko = InitializeKaskoReporter(
-        endpoint, watcher_data_directory.value().c_str());
-    if (launched_kasko) {
-      DumpHungProcess(thread_id, installer::kChromeChannelCanary, L"failed-rdv",
-                      process);
-      // We immediately request Kasko shutdown. This may block until the
-      // completion of ongoing background tasks (e.g., upload). If the report is
-      // not uploaded by this reporter, any other Kasko reporter may upload it.
-      ShutdownKaskoReporter();
-    }
-  }
-}
-#endif  // BUILDFLAG(ENABLE_KASKO_FAILED_RDV_REPORTS)
-
 }  // namespace
 
 // Microsoft's Softricity virtualization breaks the sandbox processes.
@@ -333,14 +261,7 @@ ProcessSingleton::NotifyResult ProcessSingleton::NotifyOtherProcess() {
   // Get a handle to the process that created the window.
   base::Process process = base::Process::Open(process_id);
 
-  // Optionally send a failed rendez-vous report.
-  // Note: we nominate the thread that created the window as the root of the
-  // search for a hung thread.
-#if defined(GOOGLE_CHROME_BUILD)
-#if BUILDFLAG(ENABLE_KASKO_FAILED_RDV_REPORTS)
-  SendFailedRdvReport(process, thread_id);
-#endif  // BUILDFLAG(ENABLE_KASKO_FAILED_RDV_REPORTS)
-#endif  // GOOGLE_CHROME_BUILD
+  // TODO(manzagop): capture a hang report.
 
   // Scan for every window to find a visible one.
   bool visible_window = false;