Revert 170406 - Align panel icons on the right / end.

Revert 170406 - Align panel icons on the right / end.

LauncherModel.AddIndices is failing in the bots: http://build.chromium.org/p/chromium.win/builders/Win%20Aura/builds/24835/steps/ash_unittests/logs/stdio

BUG=160605
TEST=LauncherModel.AddIndices, LauncherViewTest.AddPanelHidesTabbedBrowser, LauncherViewTest.PanelsHideLast


Review URL: https://chromiumcodereview.appspot.com/11348201

TBR=flackr@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=170420

[alexeypa (please no reviews), 2012-11-30 08:00:45]

http://build.chromium.org/p/chromium.win/builders/Win%20Aura/builds/24835/ste...:

[ RUN      ] LauncherModel.AddIndices
[5980:2520:1129/222945:1585750:FATAL:launcher_model.cc(147)] Check failed: index
>= 0 && index <= item_count(). 
Backtrace:
	base::debug::StackTrace::StackTrace [0x70529401+33]
(c:\b\build\slave\win_aura\build\src\base\debug\stack_trace_win.cc:171)
	logging::LogMessage::~LogMessage [0x704103CE+94]
(c:\b\build\slave\win_aura\build\src\base\logging.cc:564)
	ash::LauncherModel::ValidateInsertionIndex [0x6741987E+270]
(c:\b\build\slave\win_aura\build\src\ash\launcher\launcher_model.cc:147)
	ash::LauncherModel::AddAt [0x674187FD+77]
(c:\b\build\slave\win_aura\build\src\ash\launcher\launcher_model.cc:61)
	ash::LauncherModel_AddIndices_Test::TestBody [0x01268A38+4136]
(c:\b\build\slave\win_aura\build\src\ash\launcher\launcher_model_unittest.cc:195)
	testing::internal::HandleExceptionsInMethodIfSupported<testing::Test,void>
[0x0148ADFC+316]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2126)
	testing::Test::Run [0x0147976E+174]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2143)
	testing::TestInfo::Run [0x0147A12D+221]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2323)
	testing::TestCase::Run [0x0147A8BF+239]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2427)
	testing::internal::UnitTestImpl::RunAllTests [0x01480C4E+670]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:4250)
	testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl,bool>
[0x0148BAD4+324]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2126)
	testing::UnitTest::Run [0x0147F7B0+192]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:3884)
	base::TestSuite::Run [0x01471BF3+243]
(c:\b\build\slave\win_aura\build\src\base\test\test_suite.cc:195)
	main [0x014145C4+100]
(c:\b\build\slave\win_aura\build\src\ash\test\ash_unittests.cc:8)
	__tmainCRTStartup [0x014B1F5F+447]
(f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c:555)
	mainCRTStartup [0x014B1D8F+15]
(f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c:371)
	BaseThreadInitThunk [0x763DECCB+14]
	RtlCreateUserProcess [0x772CD819+140]
	RtlCreateProcessParameters [0x772CDA2B+78]

[5980:2520:1129/222945:1585750:FATAL:launcher_model.cc(147)] Check failed: index
>= 0 && index <= item_count(). 
Backtrace:
	base::debug::StackTrace::StackTrace [0x70529401+33]
(c:\b\build\slave\win_aura\build\src\base\debug\stack_trace_win.cc:171)
	logging::LogMessage::~LogMessage [0x704103CE+94]
(c:\b\build\slave\win_aura\build\src\base\logging.cc:564)
	ash::LauncherModel::ValidateInsertionIndex [0x6741987E+270]
(c:\b\build\slave\win_aura\build\src\ash\launcher\launcher_model.cc:147)
	ash::LauncherModel::AddAt [0x674187FD+77]
(c:\b\build\slave\win_aura\build\src\ash\launcher\launcher_model.cc:61)
	ash::LauncherModel_AddIndices_Test::TestBody [0x01268A38+4136]
(c:\b\build\slave\win_aura\build\src\ash\launcher\launcher_model_unittest.cc:195)
	testing::internal::HandleExceptionsInMethodIfSupported<testing::Test,void>
[0x0148ADFC+316]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2126)
	testing::Test::Run [0x0147976E+174]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2143)
	testing::TestInfo::Run [0x0147A12D+221]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2323)
	testing::TestCase::Run [0x0147A8BF+239]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2427)
	testing::internal::UnitTestImpl::RunAllTests [0x01480C4E+670]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:4250)
	testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl,bool>
[0x0148BAD4+324]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:2126)
	testing::UnitTest::Run [0x0147F7B0+192]
(c:\b\build\slave\win_aura\build\src\testing\gtest\src\gtest.cc:3884)
	base::TestSuite::Run [0x01471BF3+243]
(c:\b\build\slave\win_aura\build\src\base\test\test_suite.cc:195)
	main [0x014145C4+100]
(c:\b\build\slave\win_aura\build\src\ash\test\ash_unittests.cc:8)
	__tmainCRTStartup [0x014B1F5F+447]
(f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c:555)
	mainCRTStartup [0x014B1D8F+15]
(f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c:371)
	BaseThreadInitThunk [0x763DECCB+14]
	RtlCreateUserProcess [0x772CD819+140]
	RtlCreateProcessParameters [0x772CDA2B+78]

[flackr, 2012-11-30 13:41:59]

LGTM thanks