Clean-up suppressions: remove duplicates from TSan/Mac and TSan/Linux, move a bunch of suppressio...

tools/valgrind/tsan/suppressions.txt

 # There are a few kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 327 matching lines @@
    ThreadSanitizer:Race
    ...
    fun:std::ostream::operator*
    ...
    fun:logging::LogMessage::*LogMessage
    fun:base::PlatformThread::SetThreadPriority
    fun:base::SimpleThread::SetThreadPriority
    fun:AudioRendererImpl::Run
 }
 {
-   bug_100143

[Timur Iskhodzhanov, 2011/10/28 12:42:17]

Fixed.

-   ThreadSanitizer:Race
-   ...
-   fun:GpuDataManager::Initialize
-   fun:GpuDataManager::GetInstance
-   fun:GpuBlacklistUpdater::SetupOnFileThread
-}
-{
   Intentional race in net_unittest
   ThreadSanitizer:Race
   fun:disk_cache::BackendImpl::GetEntryCount
   fun:DiskCacheBackendTest::BackendTrimInvalidEntry2
   fun:DiskCacheBackendTest_TrimInvalidEntry2_Test::TestBody
   fun:testing::internal::HandleSehExceptionsInMethodIfSupported
 }
 
 ############################
 # 2.2 Benign races in Chromium
@@ skipping 267 matching lines @@
    fun:disk_cache::BackendImpl::MatchEntry
    fun:disk_cache::BackendImpl::InternalDoomEntry
 }
 {
   bug_101853_d
   ThreadSanitizer:Race
   fun:disk_cache::BackendImpl::GetEntryCount
   fun:DiskCacheBackendTest::BackendTrimInvalidEntry2
   fun:DiskCacheBackendTest_*
 }