Revert of Collect data reduction proxy UMA on all platforms

components/data_reduction_proxy/browser/data_reduction_proxy_metrics_unittest.cc

 // Copyright 2014 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/compiler_specific.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
 #include "base/prefs/testing_pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_metrics.h"
 #include "components/data_reduction_proxy/common/data_reduction_proxy_pref_names.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
+#if defined(OS_ANDROID) || defined(OS_IOS)
 const size_t kNumDaysInHistory = 60;
 
 int64 GetListPrefInt64Value(
     const base::ListValue& list_update, size_t index) {
   std::string string_value;
   EXPECT_TRUE(list_update.GetString(index, &string_value));
 
   int64 value = 0;
   EXPECT_TRUE(base::StringToInt64(string_value, &value));
   return value;
 }
 
+#endif  // defined(OS_ANDROID) || defined(OS_IOS)
+
 }  // namespace
 
 namespace data_reduction_proxy {
 
 // Test UpdateContentLengthPrefs.
 class ChromeNetworkDataSavingMetricsTest : public testing::Test {
  protected:
   ChromeNetworkDataSavingMetricsTest() {}
 
   virtual void SetUp() OVERRIDE {
     PrefRegistrySimple* registry = pref_service_.registry();
     registry->RegisterInt64Pref(
         data_reduction_proxy::prefs::kHttpReceivedContentLength, 0);
     registry->RegisterInt64Pref(
         data_reduction_proxy::prefs::kHttpOriginalContentLength, 0);
 
+#if defined(OS_ANDROID) || defined(OS_IOS)
     registry->RegisterListPref(data_reduction_proxy::prefs::
                                    kDailyHttpOriginalContentLength);
     registry->RegisterListPref(data_reduction_proxy::prefs::
                                    kDailyHttpReceivedContentLength);
     registry->RegisterListPref(
         data_reduction_proxy::prefs::
             kDailyOriginalContentLengthWithDataReductionProxyEnabled);
     registry->RegisterListPref(
         data_reduction_proxy::prefs::
             kDailyContentLengthWithDataReductionProxyEnabled);
@@ skipping 11 matching lines @@
             kDailyContentLengthUnknownWithDataReductionProxyEnabled);
     registry->RegisterListPref(
         data_reduction_proxy::prefs::
             kDailyOriginalContentLengthViaDataReductionProxy);
     registry->RegisterListPref(
         data_reduction_proxy::prefs::
             kDailyContentLengthViaDataReductionProxy);
     registry->RegisterInt64Pref(
         data_reduction_proxy::prefs::
             kDailyHttpContentLengthLastUpdateDate, 0L);
+#endif  // defined(OS_ANDROID) || defined(OS_IOS)
   }
 
   TestingPrefServiceSimple pref_service_;
 };
 
 TEST_F(ChromeNetworkDataSavingMetricsTest, TotalLengths) {
   const int64 kOriginalLength = 200;
   const int64 kReceivedLength = 100;
 
   UpdateContentLengthPrefs(
@@ skipping 11 matching lines @@
       kReceivedLength, kOriginalLength,
       false, UNKNOWN_TYPE, &pref_service_);
   EXPECT_EQ(kReceivedLength * 2,
             pref_service_.GetInt64(
                 data_reduction_proxy::prefs::kHttpReceivedContentLength));
   EXPECT_EQ(kOriginalLength * 2,
             pref_service_.GetInt64(
                 data_reduction_proxy::prefs::kHttpOriginalContentLength));
 }
 
+#if defined(OS_ANDROID) || defined(OS_IOS)
+
 // The initial last update time used in test. There is no leap second a few
 // days around this time used in the test.
 // Note: No time zone is specified. Local time will be assumed by
 // base::Time::FromString below.
 const char kLastUpdateTime[] = "Wed, 18 Sep 2013 03:45:26";
 
 class ChromeNetworkDailyDataSavingMetricsTest
     : public ChromeNetworkDataSavingMetricsTest {
  protected:
   ChromeNetworkDailyDataSavingMetricsTest() {
@@ skipping 547 matching lines @@
   SetFakeTimeDeltaInHours(-2 * 24);
   UpdateContentLengthPrefsForDataReductionProxy(
       kReceivedLength, kOriginalLength,
       true, VIA_DATA_REDUCTION_PROXY,
       FakeNow(), &pref_service_);
   VerifyDailyDataSavingContentLengthPrefLists(
       original, 1, received, 1,
       original, 1, received, 1,
       original, 1, received, 1);
 }
+#endif  // defined(OS_ANDROID) || defined(OS_IOS)
 
 }  // namespace data_reduction_proxy