Move app launch metric recording code from NTP to chrome/common.

chrome/common/extensions/extension_constants.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/common/extensions/extension_constants.h"
 
 namespace extension_urls {
 
 namespace {
 
@@ skipping 41 matching lines @@
     "bpmcpldpdmajfigpchkicefoigmkfalc";
 const char kQuickOfficeInternalExtensionId[] =
     "ehibbfinohgbchlgdbfpikodjaojhccn";
 const char kQuickOfficeExtensionId[] = "gbkeegbaiigmenfmjfclcdgdpimamgkj";
 const char kSettingsAppId[] = "ennkphjdgehloodpbhlhldgbnhmacadg";
 const char kStreamsPrivateTestExtensionId[] =
     "oickdpebdnfbgkcaoklfcdhjniefkcji";
 const char kYoutubeAppId[] = "blpcfgokakmgnkcojhhkbfbldkacnbeo";
 const char kInAppPaymentsSupportAppId[] = "nmmhkkegccagdldgiimedpiccmgmieda";
 
-const char kAppLaunchHistogram[] = "Extensions.AppLaunch";
-const char kPlatformAppLaunchHistogram[] = "Apps.AppLaunch";
 #if defined(OS_CHROMEOS)
 // The extension id for the built-in component extension.
 const char kChromeVoxExtensionId[] =
     "mndnfokpggljbaajbnioimlmbfngpief";
 const char kChromeVoxExtensionPath[] = "chromeos/chromevox";
 const char kChromeVoxManifestFilename[] = "manifest.json";
 const char kChromeVoxGuestManifestFilename[] = "manifest_guest.json";
 const char kChromeVoxNextManifestFilename[] = "manifest_next.json";
 const char kChromeVoxNextGuestManifestFilename[] = "manifest_next_guest.json";
 const char kBrailleImeExtensionId[] =
@@ skipping 54 matching lines @@
     0xfc, 0xf3, 0x08, 0x12, 0xff, 0x93, 0xbd, 0x62, 0x31, 0xd8, 0x1c, 0xea,
     0x1a, 0x9e, 0xf5, 0x81, 0x28, 0x7f, 0x75, 0x5e, 0xd2, 0x27, 0x7a, 0xc2,
     0x96, 0xf5, 0x9d, 0xdb, 0x18, 0xfc, 0x76, 0xdc, 0x46, 0xf0, 0x57, 0xc0,
     0x58, 0x34, 0xc8, 0x22, 0x2d, 0x2a, 0x65, 0x75, 0xa7, 0xd9, 0x08, 0x62,
     0xcd, 0x02, 0x03, 0x01, 0x00, 0x01};
 
 const int kWebstoreSignaturesPublicKeySize =
     arraysize(kWebstoreSignaturesPublicKey);
 
 }  // namespace extension_misc