Remove the tracing cache backend.

net/disk_cache/backend_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/files/file_util.h"
 #include "base/metrics/field_trial.h"
 #include "base/port.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 11 matching lines @@
 #include "net/disk_cache/blockfile/histogram_macros.h"
 #include "net/disk_cache/blockfile/mapped_file.h"
 #include "net/disk_cache/cache_util.h"
 #include "net/disk_cache/disk_cache_test_base.h"
 #include "net/disk_cache/disk_cache_test_util.h"
 #include "net/disk_cache/memory/mem_backend_impl.h"
 #include "net/disk_cache/simple/simple_backend_impl.h"
 #include "net/disk_cache/simple/simple_entry_format.h"
 #include "net/disk_cache/simple/simple_test_util.h"
 #include "net/disk_cache/simple/simple_util.h"
-#include "net/disk_cache/tracing/tracing_cache_backend.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(OS_WIN)
 #include "base/win/scoped_handle.h"
 #endif
 
 // Provide a BackendImpl object to macros from histogram_macros.h.
 #define CACHE_UMA_BACKEND_IMPL_OBJ backend_
 
 using base::Time;
@@ skipping 77 matching lines @@
   void BackendInvalidEntry11(bool eviction);
   void BackendTrimInvalidEntry12();
   void BackendDoomAll();
   void BackendDoomAll2();
   void BackendInvalidRankings();
   void BackendInvalidRankings2();
   void BackendDisable();
   void BackendDisable2();
   void BackendDisable3();
   void BackendDisable4();
-  void TracingBackendBasics();
 };
 
 int DiskCacheBackendTest::GeneratePendingIO(net::TestCompletionCallback* cb) {
   if (!use_current_thread_) {
     ADD_FAILURE();
     return net::ERR_FAILED;
   }
 
   disk_cache::Entry* entry;
   int rv = cache_->CreateEntry("some key", &entry, cb->callback());
@@ skipping 3002 matching lines @@
   cache_->OnExternalCacheHit("key0");
 
   TrimForTest(false);
 
   // Make sure the older key remains.
   EXPECT_EQ(1, cache_->GetEntryCount());
   ASSERT_EQ(net::OK, OpenEntry("key0", &entry));
   entry->Close();
 }
 
-void DiskCacheBackendTest::TracingBackendBasics() {
-  InitCache();
-  cache_.reset(new disk_cache::TracingCacheBackend(cache_.Pass()));
-  cache_impl_ = NULL;
-  EXPECT_EQ(net::DISK_CACHE, cache_->GetCacheType());
-  if (!simple_cache_mode_) {
-    EXPECT_EQ(0, cache_->GetEntryCount());
-  }
-
-  net::TestCompletionCallback cb;
-  disk_cache::Entry* entry = NULL;
-  EXPECT_NE(net::OK, OpenEntry("key", &entry));
-  EXPECT_TRUE(NULL == entry);
-
-  ASSERT_EQ(net::OK, CreateEntry("key", &entry));
-  EXPECT_TRUE(NULL != entry);
-
-  disk_cache::Entry* same_entry = NULL;
-  ASSERT_EQ(net::OK, OpenEntry("key", &same_entry));
-  EXPECT_TRUE(NULL != same_entry);
-
-  if (!simple_cache_mode_) {
-    EXPECT_EQ(1, cache_->GetEntryCount());
-  }
-  entry->Close();
-  entry = NULL;
-  same_entry->Close();
-  same_entry = NULL;
-}
-
-TEST_F(DiskCacheBackendTest, TracingBackendBasics) {
-  TracingBackendBasics();
-}
-
 // The Simple Cache backend requires a few guarantees from the filesystem like
 // atomic renaming of recently open files. Those guarantees are not provided in
 // general on Windows.
 #if defined(OS_POSIX)
 
 TEST_F(DiskCacheBackendTest, SimpleCacheShutdownWithPendingCreate) {
   SetCacheType(net::APP_CACHE);
   SetSimpleCacheMode();
   BackendShutdownWithPendingCreate(false);
 }
@@ skipping 67 matching lines @@
   SetSimpleCacheMode();
   BackendDoomAll();
 }
 
 TEST_F(DiskCacheBackendTest, SimpleCacheAppCacheOnlyDoomAll) {
   SetCacheType(net::APP_CACHE);
   SetSimpleCacheMode();
   BackendDoomAll();
 }
 
-TEST_F(DiskCacheBackendTest, SimpleCacheTracingBackendBasics) {
-  SetSimpleCacheMode();
-  TracingBackendBasics();
-  // TODO(pasko): implement integrity checking on the Simple Backend.
-  DisableIntegrityCheck();
-}
-
 TEST_F(DiskCacheBackendTest, SimpleCacheOpenMissingFile) {
   SetSimpleCacheMode();
   InitCache();
 
   const char* key = "the first key";
   disk_cache::Entry* entry = NULL;
 
   ASSERT_EQ(net::OK, CreateEntry(key, &entry));
   ASSERT_TRUE(entry != NULL);
   entry->Close();
@@ skipping 219 matching lines @@
   void* iter = NULL;
   size_t count = 0;
   ASSERT_TRUE(EnumerateAndMatchKeys(-1, &iter, &keys_to_match, &count));
   cache_->EndEnumeration(&iter);
 
   EXPECT_EQ(key_pool.size(), count);
   EXPECT_TRUE(keys_to_match.empty());
 }
 
 #endif  // defined(OS_POSIX)