Revert of Experimentally disable termination on heap corrruption in order to measure the contribution of this… (https://codereview.chromium.org/402723002/)

Reason for revert:
Crashes chromium.perf bots.

	ChildEBP RetAddr  
	0052f9f4 6a47d2ff chrome_69f00000!base::debug::BreakDebugger+0x10
	0052fa64 6a47df08 chrome_69f00000!CheckIsChromeSxSProcess+0x26
	0052fa68 6a47e664 chrome_69f00000!InstallUtil::IsChromeSxSProcess+0x16
	0052fa70 6a47e53b chrome_69f00000!BrowserDistribution::GetSpecificDistribution+0x3b
	0052fa78 6a47bb77 chrome_69f00000!BrowserDistribution::GetDistribution+0x7
	0052fb64 6a47bb2e chrome_69f00000!`anonymous namespace'::GetChromeChannelInternal+0x2c
	0052fb7c 6a2d03f8 chrome_69f00000!GoogleUpdateSettings::GetChromeChannel+0x21
	0052fbe8 6a2cd0d8 chrome_69f00000!chrome::VersionInfo::GetChannel+0x60
	0052fbec 6a2cd1ab chrome_69f00000!`anonymous namespace'::GetBeaconKeyPath+0x5
	0052fc08 6a2cc624 chrome_69f00000!ShouldExperimentallyDisableTerminateOnHeapCorruption+0xe
	0052fc50 0020720b chrome_69f00000!ChromeMain+0x42
	0052fce0 00206c36 chrome!MainDllLoader::Launch+0x15f
	0052fd24 00228c9e chrome!wWinMain+0x5a
	0052fd70 766e338a chrome!__tmainCRTStartup+0xfd
	WARNING: Stack unwind information not available. Following frames may be wrong.
	0052fd7c 76f99f72 kernel32!BaseThreadInitThunk+0x12
	0052fdbc 76f99f45 ntdll!RtlInitializeExceptionChain+0x63
	0052fdd4 00000000 ntdll!RtlInitializeExceptionChain+0x36

Original issue's description:
> Experimentally disable termination on heap corruption in order to measure the contribution of this feature to missing crash reports.
> 
> Because this feature is configured very early in the process lifetime it cannot be directly controlled by a field-trial. Rather, we query the status during a given execution, store that status in the registry, and then query the registry during startup. This means the experiment will only take effect the 2nd time it is executed.
> 
> BUG=394842
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=284100

TBR=jochen@chromium.org,brettw@chromium.org,jhawkins@chromium.org,wfh@chromium.org,erikwright@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=394842

Review URL: https://codereview.chromium.org/401913002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284197 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 0 insertions, 73 deletions

diff --git a/chrome/app/chrome_main.cc b/chrome/app/chrome_main.cc
index 63deded..c1cf145 100644
--- a/chrome/app/chrome_main.cc
+++ b/chrome/app/chrome_main.cc
@@ -8,7 +8,6 @@
 
 #if defined(OS_WIN)
 #include "base/win/win_util.h"
-#include "chrome/common/terminate_on_heap_corruption_experiment_win.h"
 
 #define DLLEXPORT __declspec(dllexport)
 
@@ -39,9 +38,6 @@ int ChromeMain(int argc, const char** argv) {
   base::win::SetAbortBehaviorForCrashReporting();
   params.instance = instance;
   params.sandbox_info = sandbox_info;
-
-  params.enable_termination_on_heap_corruption =
-      !ShouldExperimentallyDisableTerminateOnHeapCorruption();
 #else
   params.argc = argc;
   params.argv = argv;
diff --git a/chrome/browser/chrome_browser_main_win.cc b/chrome/browser/chrome_browser_main_win.cc
index 2e16bd2..c03597d 100644
--- a/chrome/browser/chrome_browser_main_win.cc
+++ b/chrome/browser/chrome_browser_main_win.cc
@@ -38,7 +38,6 @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/env_vars.h"
-#include "chrome/common/terminate_on_heap_corruption_experiment_win.h"
 #include "chrome/installer/launcher_support/chrome_launcher_support.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "chrome/installer/util/helper.h"
@@ -260,10 +259,6 @@ void ChromeBrowserMainPartsWin::PostBrowserStart() {
           base::TimeDelta::FromSeconds(45));
 
   InitializeChromeElf();
-
-  // TODO(erikwright): Remove this and the implementation of the experiment by
-  // August 2014.
-  InitializeDisableTerminateOnHeapCorruptionExperiment();
 }
 
 // static
diff --git a/chrome/chrome_common.gypi b/chrome/chrome_common.gypi
index 72cec9f..b24fd2a 100644
--- a/chrome/chrome_common.gypi
+++ b/chrome/chrome_common.gypi
@@ -211,8 +211,6 @@
       'common/spellcheck_result.h',
       'common/switch_utils.cc',
       'common/switch_utils.h',
-      'common/terminate_on_heap_corruption_experiment_win.cc',
-      'common/terminate_on_heap_corruption_experiment_win.h',
       'common/tts_messages.h',
       'common/tts_utterance_request.cc',
       'common/tts_utterance_request.h',
diff --git a/chrome/common/terminate_on_heap_corruption_experiment_win.cc b/chrome/common/terminate_on_heap_corruption_experiment_win.cc
deleted file mode 100644
index 18237af..0000000
--- a/chrome/common/terminate_on_heap_corruption_experiment_win.cc
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/common/terminate_on_heap_corruption_experiment_win.h"
-
-#include "base/metrics/field_trial.h"
-#include "base/win/registry.h"
-#include "chrome/common/chrome_constants.h"
-#include "chrome/common/chrome_version_info.h"
-
-#if defined(OS_WIN)
-#if defined(GOOGLE_CHROME_BUILD)
-#define PRODUCT_STRING_PATH L"Google\\Chrome"
-#elif defined(CHROMIUM_BUILD)
-#define PRODUCT_STRING_PATH L"Chromium"
-#else
-#error Unknown branding
-#endif
-#endif  // defined(OS_WIN)
-
-namespace {
-
-wchar_t* GetBeaconKeyPath() {
-  chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
-  if (channel == chrome::VersionInfo::CHANNEL_CANARY) {
-    return L"SOFTWARE\\" PRODUCT_STRING_PATH
-        L"\\DisableTerminateOnProcessHeapCorruptionSxs";
-  }
-  return L"SOFTWARE\\" PRODUCT_STRING_PATH
-      L"\\DisableTerminateOnProcessHeapCorruption";
-}
-
-}  // namespace
-
-bool ShouldExperimentallyDisableTerminateOnHeapCorruption() {
-  base::win::RegKey regkey(
-      HKEY_CURRENT_USER, GetBeaconKeyPath(), KEY_QUERY_VALUE);
-  return regkey.Valid();
-}
-
-void InitializeDisableTerminateOnHeapCorruptionExperiment() {
-  base::win::RegKey regkey(HKEY_CURRENT_USER);
-
-  if (base::FieldTrialList::FindFullName("TerminateOnProcessHeapCorruption") ==
-      "Disabled") {
-    regkey.CreateKey(GetBeaconKeyPath(), KEY_SET_VALUE);
-  } else {
-    regkey.DeleteKey(GetBeaconKeyPath());
-  }
-}
diff --git a/chrome/common/terminate_on_heap_corruption_experiment_win.h b/chrome/common/terminate_on_heap_corruption_experiment_win.h
deleted file mode 100644
index aa728c0..0000000
--- a/chrome/common/terminate_on_heap_corruption_experiment_win.h
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CHROME_COMMON_TERMINATE_ON_HEAP_CORRUPTION_EXPERIMENT_WIN_H_
-#define CHROME_COMMON_TERMINATE_ON_HEAP_CORRUPTION_EXPERIMENT_WIN_H_
-
-bool ShouldExperimentallyDisableTerminateOnHeapCorruption();
-void InitializeDisableTerminateOnHeapCorruptionExperiment();
-
-#endif  // CHROME_COMMON_TERMINATE_ON_HEAP_CORRUPTION_EXPERIMENT_WIN_H_