Add a new LaunchMode value for launches from a user experiment.

chrome/browser/ui/startup/startup_browser_creator_impl.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/ui/startup/startup_browser_creator_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 115 matching lines @@
 
 using content::ChildProcessSecurityPolicy;
 using content::WebContents;
 using extensions::Extension;
 
 namespace {
 
 // Utility functions ----------------------------------------------------------
 
 enum LaunchMode {
-  LM_TO_BE_DECIDED = 0,       // Possibly direct launch or via a shortcut.
-  LM_AS_WEBAPP,               // Launched as a installed web application.
-  LM_WITH_URLS,               // Launched with urls in the cmd line.
-  LM_SHORTCUT_NONE,           // Not launched from a shortcut.
-  LM_SHORTCUT_NONAME,         // Launched from shortcut but no name available.
-  LM_SHORTCUT_UNKNOWN,        // Launched from user-defined shortcut.
-  LM_SHORTCUT_QUICKLAUNCH,    // Launched from the quick launch bar.
-  LM_SHORTCUT_DESKTOP,        // Launched from a desktop shortcut.
-  LM_SHORTCUT_TASKBAR,        // Launched from the taskbar.
-  LM_LINUX_MAC_BEOS           // Other OS buckets start here.
+  LM_TO_BE_DECIDED = 0,     // Possibly direct launch or via a shortcut.
+  LM_AS_WEBAPP,             // Launched as a installed web application.
+  LM_WITH_URLS,             // Launched with urls in the cmd line.
+  LM_OTHER,                 // Not launched from a shortcut.
+  LM_SHORTCUT_NONAME,       // Launched from shortcut but no name available.
+  LM_SHORTCUT_UNKNOWN,      // Launched from user-defined shortcut.
+  LM_SHORTCUT_QUICKLAUNCH,  // Launched from the quick launch bar.
+  LM_SHORTCUT_DESKTOP,      // Launched from a desktop shortcut.
+  LM_SHORTCUT_TASKBAR,      // Launched from the taskbar.
+  LM_USER_EXPERIMENT,       // Launched after acceptance of a user experiment.
+  LM_LINUX_MAC_BEOS         // Other OS buckets start here.
 };
 
 #if defined(OS_WIN)
 // Undocumented flag in the startup info structure tells us what shortcut was
 // used to launch the browser. See http://www.catch22.net/tuts/undoc01 for
 // more information. Confirmed to work on XP, Vista and Win7.
 LaunchMode GetLaunchShortcutKind() {
   STARTUPINFOW si = { sizeof(si) };
   GetStartupInfoW(&si);
   if (si.dwFlags & 0x800) {
     if (!si.lpTitle)
       return LM_SHORTCUT_NONAME;
     base::string16 shortcut(si.lpTitle);
     // The windows quick launch path is not localized.
     if (shortcut.find(L"\\Quick Launch\\") != base::string16::npos) {
       if (base::win::GetVersion() >= base::win::VERSION_WIN7)
         return LM_SHORTCUT_TASKBAR;
       else
         return LM_SHORTCUT_QUICKLAUNCH;
     }
     std::unique_ptr<base::Environment> env(base::Environment::Create());
     std::string appdata_path;
     env->GetVar("USERPROFILE", &appdata_path);
     if (!appdata_path.empty() &&
         shortcut.find(base::UTF8ToUTF16(appdata_path)) != base::string16::npos)
       return LM_SHORTCUT_DESKTOP;
     return LM_SHORTCUT_UNKNOWN;
   }
-  return LM_SHORTCUT_NONE;
+  return LM_OTHER;
 }
 #else
 // TODO(cpu): Port to other platforms.
 LaunchMode GetLaunchShortcutKind() {
   return LM_LINUX_MAC_BEOS;
 }
 #endif
 
 // Log in a histogram the frequency of launching by the different methods. See
 // LaunchMode enum for the actual values of the buckets.
@@ skipping 148 matching lines @@
       is_first_run_(is_first_run == chrome::startup::IS_FIRST_RUN),
       welcome_run_type_(WelcomeRunType::NONE) {
 }
 
 StartupBrowserCreatorImpl::~StartupBrowserCreatorImpl() {
 }
 
 bool StartupBrowserCreatorImpl::Launch(Profile* profile,
                                        const std::vector<GURL>& urls_to_open,
                                        bool process_startup) {
-  UMA_HISTOGRAM_COUNTS_100("Startup.BrowserLaunchURLCount",
+  UMA_HISTOGRAM_COUNTS_100(
+      "Startup.BrowserLaunchURLCount",
       static_cast<base::HistogramBase::Sample>(urls_to_open.size()));
   RecordRapporOnStartupURLs(urls_to_open);
 
   DCHECK(profile);
   profile_ = profile;
 
   if (AppListService::HandleLaunchCommandLine(command_line_, profile))
     return true;
 
   if (command_line_.HasSwitch(switches::kAppId)) {
@@ skipping 16 matching lines @@
   // Open the required browser windows and tabs. First, see if
   // we're being run as an application window. If so, the user
   // opened an app shortcut.  Don't restore tabs or open initial
   // URLs in that case. The user should see the window as an app,
   // not as chrome.
   // Special case is when app switches are passed but we do want to restore
   // session. In that case open app window + focus it after session is restored.
   if (OpenApplicationWindow(profile)) {
     RecordLaunchModeHistogram(LM_AS_WEBAPP);
   } else {
-    RecordLaunchModeHistogram(urls_to_open.empty() ?
-                              LM_TO_BE_DECIDED : LM_WITH_URLS);
+    if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+            switches::kTryChromeAgain)) {
+      RecordLaunchModeHistogram(LM_USER_EXPERIMENT);
+    } else {
+      RecordLaunchModeHistogram(urls_to_open.empty() ? LM_TO_BE_DECIDED
+                                                     : LM_WITH_URLS);
+    }
 
     if (StartupBrowserCreator::UseConsolidatedFlow())
       ProcessLaunchUrlsUsingConsolidatedFlow(process_startup, urls_to_open);
     else
       ProcessLaunchURLs(process_startup, urls_to_open);
 
     if (command_line_.HasSwitch(switches::kInstallChromeApp)) {
       install_chrome_app::InstallChromeApp(
           command_line_.GetSwitchValueASCII(switches::kInstallChromeApp));
     }
@@ skipping 863 matching lines @@
 #if defined(OS_WIN)
   TriggeredProfileResetter* triggered_profile_resetter =
       TriggeredProfileResetterFactory::GetForBrowserContext(profile_);
   // TriggeredProfileResetter instance will be nullptr for incognito profiles.
   if (triggered_profile_resetter) {
     has_reset_trigger = triggered_profile_resetter->HasResetTrigger();
   }
 #endif  // defined(OS_WIN)
   return has_reset_trigger;
 }