Revert 134625 - Transmit a X-Chrome-UMA-Enabled bit to Google domains from clients that have UMA en…

Revert 134625 - Transmit a X-Chrome-UMA-Enabled bit to Google domains from clients that have UMA enabled. Causing startup crash on Linux chromeos bot.

This requires a change to the ChromeNetworkDelegate where we feed the incognito state (a bool) into the object at creation time, so we can check that field when doing our header setting.

BUG=123609
TEST=With UMA enabled (not Chromium), visit www.google.com and ensure that the request header includes X-Chrome-UMA-Enabled with value "1". Ensure that disabling UMA also disables the transmission of this header entirely.  Also, ensure that unit_tests GoogleUtilTests all pass.
TBR=ivankr@chromium.org

Review URL: http://codereview.chromium.org/10108026

TBR=stevet@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=134641

[kkania, 2012-04-30 23:50:46]

AutomatedUITestBase.CloseTab: 
[1710:1710:70893511:WARNING:zygote_host_impl_linux.cc(154)] Running without the
SUID sandbox! See
http://code.google.com/p/chromium/wiki/LinuxSUIDSandboxDevelopment for more
information on developing with the sandbox on.
[1710:1710:70896155:ERROR:library_loader.cc(58)] Problem loading chromeos shared
object: Couldn't load libcros from:
/mnt/data/b/build/slave/Linux_ChromiumOS_Tests__dbg__3_/build/src/out/Debug/chromeos/libcros.so
error:
/mnt/data/b/build/slave/Linux_ChromiumOS_Tests__dbg__3_/build/src/out/Debug/chromeos/libcros.so:
cannot open shared object file: No such file or directory
[1710:1710:70896698:WARNING:cros_library.cc(59)] CrosLibrary failed to
Initialize. Will use stub implementations.
[1710:1710:70923249:ERROR:ownership_service.cc(80)] Blocking on UI thread in
OwnershipService::GetStatus
[1710:1710:70925803:WARNING:proxy_config_service_impl.cc(826)] 0x7ff1d0906000:
Error retrieving proxy setting from device
[1710:1710:70943192:ERROR:gl_surface_glx.cc(65)] GLX 1.3 or later is required.
[1710:1710:70943429:ERROR:gl_surface_linux.cc(55)]
GLSurfaceGLX::InitializeOneOff failed.
[1710:1710:70943588:ERROR:compositor.cc(72)] Could not load the GL bindings
[1710:1710:71063912:ERROR:nss_util.cc(463)] Error initializing NSS with a
persistent database (sql:/etc/fake_root_ca/nssdb): NSS error code: -8174
[1710:1710:71068363:FATAL:pref_member.cc(38)] Check failed:
prefs_->FindPreference(pref_name_.c_str()). 
Backtrace:
	base::debug::StackTrace::StackTrace() [0x7ff1e3968472]
	logging::LogMessage::~LogMessage() [0x7ff1e3999c8b]
	subtle::PrefMemberBase::Init() [0x7ff1e42ff215]
	PrefMember<>::Init() [0x7ff1e4367584]
	ProfileImplIOData::Handle::Init() [0x7ff1e4afd77b]
	ProfileImpl::DoFinalInit() [0x7ff1e4af66fa]
	ProfileImpl::OnPrefsLoaded() [0x7ff1e4af86b8]
	ProfileImpl::ProfileImpl() [0x7ff1e4af5d80]
	Profile::CreateProfile() [0x7ff1e4af4c5c]
	ProfileManager::CreateProfileHelper() [0x7ff1e4347be2]
	ProfileManager::GetProfile() [0x7ff1e4345f18]
	ProfileManager::GetDefaultProfile() [0x7ff1e4345c64]
	ProfileManager::GetDefaultProfile() [0x7ff1e4344b3d]
	ChromeLauncherDelegate::ChromeLauncherDelegate() [0x7ff1e4c374cc]
	ChromeShellDelegate::CreateLauncherDelegate() [0x7ff1e4c334e6]
	ash::Launcher::Launcher() [0x7ff1ddbb8e13]
	ash::Shell::CreateLauncher() [0x7ff1ddbd0eed]
	ash::Shell::Init() [0x7ff1ddbd05b3]
	ash::Shell::CreateInstance() [0x7ff1ddbcface]
	ChromeBrowserMainExtraPartsAsh::PreProfileInit() [0x7ff1e479f78c]
	ChromeBrowserMainParts::PreProfileInit() [0x7ff1e479c35d]
	ChromeBrowserMainPartsLinux::PreProfileInit() [0x7ff1e47a0b1d]
	ChromeBrowserMainPartsChromeos::PreProfileInit() [0x7ff1e4173b63]
	ChromeBrowserMainParts::PreMainMessageLoopRunImpl() [0x7ff1e479c8c7]
	ChromeBrowserMainParts::PreMainMessageLoopRun() [0x7ff1e479c2c2]
	ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun() [0x7ff1e4173785]
	content::BrowserMainLoop::CreateThreads() [0x7ff1e021d638]
	(anonymous namespace)::BrowserMainRunnerImpl::Initialize() [0x7ff1e021f74f]
	BrowserMain() [0x7ff1e021b80b]
	(anonymous namespace)::RunNamedProcessTypeMain() [0x7ff1e01f6ed3]
	(anonymous namespace)::ContentMainRunnerImpl::Run() [0x7ff1e01f7940]
	content::ContentMain() [0x7ff1e01f65c9]
	ChromeMain [0x7ff1e41216f1]
	main [0x7ff1e41216bc]
	0x7ff1d2cbfc4d
	0x7ff1e41215c9

[SteveT, 2012-05-01 14:58:10]

lgtm - thanks for reverting.

I've figured out the issue and will reland with a fix today. Thanks!