Change MessagePumpForGpu and SharedMemory to ScopedHandle

base/memory/shared_memory_unittest.cc

Index: base/memory/shared_memory_unittest.cc
diff --git a/base/memory/shared_memory_unittest.cc b/base/memory/shared_memory_unittest.cc
index 8251f6084021c737ba01fb3986513d52da254d23..f29865c21aee054cc1368968263d8b317d53ea10 100644
--- a/base/memory/shared_memory_unittest.cc
+++ b/base/memory/shared_memory_unittest.cc
@@ -592,11 +592,6 @@ TEST(SharedMemoryTest, UnsafeImageSection) {
   EXPECT_FALSE(shared_memory_open.Map(1));
   EXPECT_EQ(nullptr, shared_memory_open.memory());
 
-  SharedMemory shared_memory_handle_dup(

[stanisc, 2016/06/29 18:36:18]

This part of the test is redundant (identical to the next one). And it was
causing a problem due to double tracking / double closing of the handle.

-      SharedMemoryHandle(section_handle.Get(), ::GetCurrentProcessId()), true);
-  EXPECT_FALSE(shared_memory_handle_dup.Map(1));
-  EXPECT_EQ(nullptr, shared_memory_handle_dup.memory());
-
   SharedMemory shared_memory_handle_local(
       SharedMemoryHandle(section_handle.Take(), ::GetCurrentProcessId()), true);
   EXPECT_FALSE(shared_memory_handle_local.Map(1));