Revert of Experimentally disable termination on heap corrruption in order to measure the contribution of this…

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
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=284197

[tonyg, 2014-07-18 21:11:23]

Created Revert of Experimentally disable termination on heap corrruption in
order to measure the contribution of this…