Revert of [MemSheriff] Exclude/suppress failing tests on DrMemory.

Revert of [MemSheriff] Exclude/suppress failing tests on DrMemory. (patchset #1 id:1 of https://codereview.chromium.org/875923002/)

Reason for revert:
Memory error was resolved

Original issue's description:
> [MemSheriff] Exclude/suppress failing tests on DrMemory.
> 
> BUG=446256, 451991, 451992, 451988, 293125, 451983
> TBR=thestig@chromium.org
> NOTRY=true
> 
> Committed: https://crrev.com/78924e45a48629664deeee14e3c84638ae13ff66
> Cr-Commit-Position: refs/heads/master@{#313064}

TBR=thestig@chromium.org,earthdok@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=446256, 451991, 451992, 451988, 293125, 451983

[Justin Novosad, 2015-02-03 16:18:39]

Created Revert of [MemSheriff] Exclude/suppress failing tests on DrMemory.

[commit-bot: I haz the power, 2015-02-03 16:18:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/879833003/1

[commit-bot: I haz the power, 2015-02-03 16:19:19]

The CQ bit was unchecked by commit-bot@chromium.org

[earthdok, 2015-02-03 16:19:20]

The CQ bit was unchecked by earthdok@chromium.org

[commit-bot: I haz the power, 2015-02-03 16:19:20]

Failed to apply patch for tools/valgrind/drmemory/suppressions_full.txt:
While running git apply --index -3 -p1;
  error: patch failed: tools/valgrind/drmemory/suppressions_full.txt:1889
  Falling back to three-way merge...
  Applied patch to 'tools/valgrind/drmemory/suppressions_full.txt' with
conflicts.
  U tools/valgrind/drmemory/suppressions_full.txt

Patch:       tools/valgrind/drmemory/suppressions_full.txt
Index: tools/valgrind/drmemory/suppressions_full.txt
diff --git a/tools/valgrind/drmemory/suppressions_full.txt
b/tools/valgrind/drmemory/suppressions_full.txt
index
144e5b575595efbbb7ff63e361ce1fc50eb71984..a0da41c0481fbf3e76e08779b5fa79a131a4441c
100644
--- a/tools/valgrind/drmemory/suppressions_full.txt
+++ b/tools/valgrind/drmemory/suppressions_full.txt
@@ -1889,7 +1889,3 @@
 *!ash::test::ShelfViewTest_OverflowBubbleSize_Test::TestBody
 *!testing::internal::HandleExceptionsInMethodIfSupported<>
 
-UNINITIALIZED READ
-name=bug_446256
-*!`anonymous
namespace'::GraphicsContextTest_trackDisplayListRecording_Test::TestBody
-*!testing::internal::HandleExceptionsInMethodIfSupported<>

[commit-bot: I haz the power, 2015-02-03 16:19:26]

The CQ bit was unchecked by commit-bot@chromium.org

[Justin Novosad, 2015-02-03 16:20:35]

On 2015/02/03 16:19:20, I haz the power (commit-bot) wrote:
> Failed to apply patch for tools/valgrind/drmemory/suppressions_full.txt:
> While running git apply --index -3 -p1;
>   error: patch failed: tools/valgrind/drmemory/suppressions_full.txt:1889
>   Falling back to three-way merge...
>   Applied patch to 'tools/valgrind/drmemory/suppressions_full.txt' with
> conflicts.
>   U tools/valgrind/drmemory/suppressions_full.txt
> 
> Patch:       tools/valgrind/drmemory/suppressions_full.txt
> Index: tools/valgrind/drmemory/suppressions_full.txt
> diff --git a/tools/valgrind/drmemory/suppressions_full.txt
> b/tools/valgrind/drmemory/suppressions_full.txt
> index
>
144e5b575595efbbb7ff63e361ce1fc50eb71984..a0da41c0481fbf3e76e08779b5fa79a131a4441c
> 100644
> --- a/tools/valgrind/drmemory/suppressions_full.txt
> +++ b/tools/valgrind/drmemory/suppressions_full.txt
> @@ -1889,7 +1889,3 @@
>  *!ash::test::ShelfViewTest_OverflowBubbleSize_Test::TestBody
>  *!testing::internal::HandleExceptionsInMethodIfSupported<>
>  
> -UNINITIALIZED READ
> -name=bug_446256
> -*!`anonymous
> namespace'::GraphicsContextTest_trackDisplayListRecording_Test::TestBody
> -*!testing::internal::HandleExceptionsInMethodIfSupported<>

Whoa good thing this failed. I missed that this patch has a bunch of
suppressions bundled together.   Closing.

[earthdok, 2015-02-03 16:20:50]

This affects 6 issues, some of which are not fixed. Please remove only the
relevant suppression