Update from https://crrev.com/329939

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 b48c19946bf6cc086fab9a0d85968d62affcab74..3138a62132ee4f74a541ed5441ab84d83da780b5 100644
--- a/tools/valgrind/drmemory/suppressions_full.txt
+++ b/tools/valgrind/drmemory/suppressions_full.txt
@@ -1906,12 +1906,15 @@ name=bug_468169
 ...
 *!vp9_foreach_transformed_block_in_plane
 ...
-*!encode_superblock
-*!encode_b_rt
-*!encode_sb_rt
-*!encode_sb_rt
-*!encode_sb_rt
-*!encode_sb_rt
+*!nonrd_select_partition
+*!encode_nonrd_sb_row
+*!vp9_encode_tile
+
+UNINITIALIZED READ
+name=bug_468169_b
+...
+*!vp9_pick_inter_mode
+...
 *!nonrd_select_partition
 *!encode_nonrd_sb_row
 *!vp9_encode_tile
@@ -1949,3 +1952,31 @@ content.dll!content::RenderThreadImpl::HostAllocateSharedMemoryBuffer
 content.dll!content::RenderThreadImpl::AllocateSharedMemory
 ...
 content.dll!content::WebGraphicsContext3DCommandBufferImpl::CreateContext
+
+HANDLE LEAK
+name=https://crbug.com/487492
+system call NtCreateSection
+KERNELBASE.dll!CreateFileMappingW
+base.dll!base::SharedMemory::Create
+base.dll!base::SharedMemory::CreateAnonymous
+content.dll!content::ChildThreadImpl::AllocateSharedMemory
+...
+ppapi_proxy.dll!ppapi::proxy::PPB_ImageData_Proxy::CreateImageData
+
+HANDLE LEAK
+name=https://crbug.com/487492_b
+system call NtGdiCreateDIBSection
+GDI32.dll!CreateDIBSection
+skia.dll!`anonymous namespace'::CreateHBitmap
+...
+content.dll!content::PepperGraphics2DHost::Flush
+
+HANDLE LEAK
+name=https://crbug.com/487492_c
+system call NtCreateSection
+KERNELBASE.dll!CreateFileMappingW
+base.dll!base::SharedMemory::Create
+base.dll!base::SharedMemory::CreateAnonymous
+content.dll!content::ChildThreadImpl::AllocateSharedMemory
+...
+content.dll!content::PepperPluginInstanceImpl::PrepareTextureMailbox