Mac: Turn on tab overview mode by default.

BUG=50307,72362
TEST=three-finger-swipe down and Window->Tab Overview both open tab overview mode

Review URL: http://codereview.chromium.org/6459009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@74236 0039d316-1c4b-4281-b951-d872f2087c98

6 files changed, 0 insertions, 32 deletions

diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 1708b7f..c64870f 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -3948,12 +3948,6 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_ENABLE" desc="The link for enabling a labs experiment.">
         Enable
       </message>
-      <message name="IDS_FLAGS_TABPOSE_NAME" desc="Name of the 'Tab Overview' lab.">
-        Tab Overview
-      </message>
-      <message name="IDS_FLAGS_TABPOSE_DESCRIPTION" desc="Description of the 'Tab Overview' lab.">
-        Swipe down with three fingers on your trackpad to see an overview of all your tabs. Click on a thumbnail to select it. Works great in fullscreen mode.
-      </message>
       <message name="IDS_FLAGS_MEDIA_PLAYER_NAME" desc="Name of the 'Media Player' lab.">
         Media Player
       </message>
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 8386677..e755ee9 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -70,18 +70,6 @@ const char kVerticalTabsExperimentName[] = "vertical-tabs";
 // When adding a new choice, add it to the end of the list.
 const Experiment kExperiments[] = {
   {
-    "expose-for-tabs",  // FLAGS:RECORD_UMA
-    IDS_FLAGS_TABPOSE_NAME,
-    IDS_FLAGS_TABPOSE_DESCRIPTION,
-    kOsMac,
-#if defined(OS_MACOSX)
-    // The switch exists only on OS X.
-    SINGLE_VALUE_TYPE(switches::kEnableExposeForTabs)
-#else
-    SINGLE_VALUE_TYPE("")
-#endif
-  },
-  {
     kMediaPlayerExperimentName,
     IDS_FLAGS_MEDIA_PLAYER_NAME,
     IDS_FLAGS_MEDIA_PLAYER_DESCRIPTION,
diff --git a/chrome/browser/app_controller_mac.mm b/chrome/browser/app_controller_mac.mm
index 87642af..cf49d4a 100644
--- a/chrome/browser/app_controller_mac.mm
+++ b/chrome/browser/app_controller_mac.mm
@@ -609,11 +609,6 @@ void RecordLastRunAppBundlePath() {
     [self openUrls:startupUrls_];
     [self clearStartupUrls];
   }
-
-  const CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
-  if (!parsed_command_line.HasSwitch(switches::kEnableExposeForTabs)) {
-    [tabposeMenuItem_ setHidden:YES];
-  }
 }
 
 // This is called after profiles have been loaded and preferences registered.
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 868d586..61a3803 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -1396,11 +1396,6 @@ void Browser::SelectPreviousTab() {
 
 void Browser::OpenTabpose() {
 #if defined(OS_MACOSX)
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(
-        switches::kEnableExposeForTabs)) {
-    return;
-  }
-
   UserMetrics::RecordAction(UserMetricsAction("OpenTabpose"), profile_);
   window()->OpenTabpose();
 #else
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 95aa721..a798bde 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -1358,9 +1358,6 @@ const char kPasswordStore[]                 = "password-store";
 // has been out there for a few dev channel releases without problems.
 const char kDisableHolePunching[]           = "disable-hole-punching";
 
-// Enables the tabs expose feature ( http://crbug.com/50307 ).
-const char kEnableExposeForTabs[] = "enable-expose-for-tabs";
-
 // Cause the OS X sandbox write to syslog every time an access to a resource
 // is denied by the sandbox.
 const char kEnableSandboxLogging[]          = "enable-sandbox-logging";
diff --git a/chrome/common/chrome_switches.h b/chrome/common/chrome_switches.h
index d776b0e..0e67fa1 100644
--- a/chrome/common/chrome_switches.h
+++ b/chrome/common/chrome_switches.h
@@ -390,7 +390,6 @@ extern const char kPasswordStore[];
 
 #if defined(OS_MACOSX)
 extern const char kDisableHolePunching[];
-extern const char kEnableExposeForTabs[];
 extern const char kEnableSandboxLogging[];
 #else
 extern const char kKioskMode[];