Disk cache: Remove not needed memory comparison from unit test.

net/disk_cache/entry_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 374 matching lines @@
       entry->WriteData(
           1, 10000, buffer2.get(), kSize2, net::CompletionCallback(), false));
   memset(buffer2->data(), 0, kSize2);
   EXPECT_EQ(24989,
             entry->ReadData(
                 1, 10011, buffer2.get(), kSize2, net::CompletionCallback()));
   EXPECT_STREQ("big data goes here", buffer2->data());
   EXPECT_EQ(
       25000,
       entry->ReadData(1, 0, buffer2.get(), kSize2, net::CompletionCallback()));
-  EXPECT_EQ(0, memcmp(buffer2->data(), buffer2->data(), 10000));
   EXPECT_EQ(5000,
             entry->ReadData(
                 1, 30000, buffer2.get(), kSize2, net::CompletionCallback()));
 
   EXPECT_EQ(0,
             entry->ReadData(
                 1, 35000, buffer2.get(), kSize2, net::CompletionCallback()));
   EXPECT_EQ(
       17000,
       entry->ReadData(1, 0, buffer1.get(), kSize1, net::CompletionCallback()));
@@ skipping 2991 matching lines @@
 
   // Check that we are not leaking.
   ASSERT_NE(entry, null);
   EXPECT_TRUE(
       static_cast<disk_cache::SimpleEntryImpl*>(entry)->HasOneRef());
   entry->Close();
   entry = NULL;
 }
 
 #endif  // defined(OS_POSIX)