Keep all references to kInstallDate inside components/metrics/

chrome/browser/chrome_browser_main.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 "chrome/browser/chrome_browser_main.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 86 matching lines @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/crash_keys.h"
 #include "chrome/common/env_vars.h"
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/net/net_resource_provider.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/profiling.h"
 #include "chrome/installer/util/google_update_settings.h"
 #include "components/google/core/browser/google_util.h"
 #include "components/language_usage_metrics/language_usage_metrics.h"
-#include "components/metrics/metrics_pref_names.h"
 #include "components/metrics/metrics_service.h"
 #include "components/nacl/browser/nacl_browser.h"
 #include "components/nacl/browser/nacl_process_host.h"
 #include "components/rappor/rappor_service.h"
 #include "components/signin/core/common/profile_management_switches.h"
 #include "components/startup_metric_utils/startup_metric_utils.h"
 #include "components/translate/core/browser/translate_download_manager.h"
 #include "components/variations/variations_http_header_provider.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_observer.h"
@@ skipping 476 matching lines @@
     bool result = provider->SetDefaultVariationIds(
         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
     CHECK(result) << "Invalid --" << switches::kForceVariationIds
                   << " list specified.";
   }
   chrome_variations::VariationsService* variations_service =
       browser_process_->variations_service();
   if (variations_service)
     variations_service->CreateTrialsFromSeed();
 
-  // This must be called after the local state is initialized.
-  browser_field_trials_.SetupFieldTrials(local_state_);
+  // This must be called after |local_state_| is initialized.
+  browser_field_trials_.SetupFieldTrials(
+      base::Time::FromTimeT(metrics->GetInstallDate()), local_state_);
 
   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
   // Even though base::Bind does AddRef and Release, the object will not be
   // deleted after the Task is executed.
   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 
   // Now that field trials have been created, initializes metrics recording.
   metrics->InitializeMetricsRecordingState();
 }
@@ skipping 314 matching lines @@
 
 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
   // Set the product channel for crash reports.
   base::debug::SetCrashKeyValue(crash_keys::kChannel,
       chrome::VersionInfo::GetVersionStringModifier());
 #endif
 
   // Initialize tracking synchronizer system.
   tracking_synchronizer_ = new chrome_browser_metrics::TrackingSynchronizer();
 
-  // Now that all preferences have been registered, set the install date
-  // for the uninstall metrics if this is our first run. This only actually
-  // gets used if the user has metrics reporting enabled at uninstall time.
-  int64 install_date = local_state_->GetInt64(metrics::prefs::kInstallDate);
-  if (install_date == 0) {
-    local_state_->SetInt64(metrics::prefs::kInstallDate,
-                           base::Time::Now().ToTimeT());
-  }
-
 #if defined(OS_MACOSX)
   // Get the Keychain API to register for distributed notifications on the main
   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
   // which doesn't. This ensures those notifications will get delivered
   // properly. See issue 37766.
   // (Note that the callback mask here is empty. I don't want to register for
   // any callbacks, I just want to initialize the mechanism.)
   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
 #endif
 
@@ skipping 700 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif
 #endif
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }