Implement about:labs

Tabpose is currently the only lab on mac, tabs-on-left the only lab on windows. Nothing for linux yet.

BUG=53399
TEST=Go to about:labs. Should have one feature on windows and osx each, none on linux yet. about:labs should not be visible on the stable channel. Labs that were enabled on the dev channel should not be enabled on the stable channel. about:labs in chromeos should still work (they use a different implementation)

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=57635

Review URL: http://codereview.chromium.org/3152055

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57670 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 24 insertions, 12 deletions

diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index cf74af4..2ce27d1 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -389,6 +389,9 @@ const char kDeleteTimePeriod[] = "browser.clear_data.time_period";
 // Boolean pref to define the default values for using spellchecker.
 const char kEnableSpellCheck[] = "browser.enable_spellchecking";
 
+// List of names of the enabled labs experiments (see chrome/browser/labs.cc).
+const char kEnabledLabsExperiments[] = "browser.enabled_labs_experiments";
+
 // Boolean pref to define the default values for using auto spell correct.
 const char kEnableAutoSpellCorrect[] = "browser.enable_autospellcorrect";
 
diff --git a/chrome/common/pref_names.h b/chrome/common/pref_names.h
index 232d0fd..885cb67 100644
--- a/chrome/common/pref_names.h
+++ b/chrome/common/pref_names.h
@@ -149,6 +149,7 @@ extern const char kDeleteCookies[];
 extern const char kDeletePasswords[];
 extern const char kDeleteFormData[];
 extern const char kEnableSpellCheck[];
+extern const char kEnabledLabsExperiments[];
 extern const char kEnableAutoSpellCorrect[];
 extern const char kDeleteTimePeriod[];
 extern const char kPrintingPageHeaderLeft[];
diff --git a/chrome/common/url_constants.cc b/chrome/common/url_constants.cc
index 0270e48..031a13d 100644
--- a/chrome/common/url_constants.cc
+++ b/chrome/common/url_constants.cc
@@ -41,21 +41,23 @@ const char* kSavableSchemes[] = {
   NULL
 };
 
+const char kAboutAboutURL[] = "about:about";
 const char kAboutAppCacheInternalsURL[] = "about:appcache-internals";
 const char kAboutBlankURL[] = "about:blank";
 const char kAboutCacheURL[] = "about:cache";
 const char kAboutCrashURL[] = "about:crash";
 const char kAboutCreditsURL[] = "about:credits";
+const char kAboutDNSURL[] = "about:dns";
 const char kAboutHangURL[] = "about:hang";
+const char kAboutHistogramsURL[] = "about:histograms";
+const char kAboutLabsURL[] = "about:labs";
 const char kAboutMemoryURL[] = "about:memory";
 const char kAboutNetInternalsURL[] = "about:net-internals";
 const char kAboutPluginsURL[] = "about:plugins";
 const char kAboutShorthangURL[] = "about:shorthang";
 const char kAboutSystemURL[] = "about:system";
 const char kAboutTermsURL[] = "about:terms";
-const char kAboutAboutURL[] = "about:about";
-const char kAboutDNSURL[] = "about:dns";
-const char kAboutHistogramsURL[] = "about:histograms";
+const char kAboutVaporwareURL[] = "about:vaporware";
 const char kAboutVersionURL[] = "about:version";
 
 // Use an obfuscated URL to make this nondiscoverable, we only want this
@@ -71,10 +73,11 @@ const char kChromeUIDownloadsURL[] = "chrome://downloads/";
 const char kChromeUIExtensionsURL[] = "chrome://extensions/";
 const char kChromeUIFavIconURL[] = "chrome://favicon/";
 const char kChromeUIFileBrowseURL[] = "chrome://filebrowse/";
-const char kChromeUIHistoryURL[] = "chrome://history/";
 const char kChromeUIHistory2URL[] = "chrome://history2/";
+const char kChromeUIHistoryURL[] = "chrome://history/";
 const char kChromeUIImageBurnerURL[] = "chrome://imageburner/";
 const char kChromeUIIPCURL[] = "chrome://about/ipc";
+const char kChromeUILabsURL[] = "chrome://labs/";
 const char kChromeUIMediaplayerURL[] = "chrome://mediaplayer/";
 const char kChromeUINewTabURL[] = "chrome://newtab";
 const char kChromeUIOptionsURL[] = "chrome://options/";
@@ -95,6 +98,7 @@ const char kChromeUIHistoryHost[] = "history";
 const char kChromeUIHistory2Host[] = "history2";
 const char kChromeUIImageBurnerHost[] = "imageburner";
 const char kChromeUIInspectorHost[] = "inspector";
+const char kChromeUILabsHost[] = "labs";
 const char kChromeUIMediaplayerHost[] = "mediaplayer";
 const char kChromeUINetInternalsHost[] = "net-internals";
 const char kChromeUINewTabHost[] = "newtab";
diff --git a/chrome/common/url_constants.h b/chrome/common/url_constants.h
index 47b5610..bb726fe 100644
--- a/chrome/common/url_constants.h
+++ b/chrome/common/url_constants.h
@@ -35,22 +35,24 @@ extern const char kStandardSchemeSeparator[];
 extern const char* kSavableSchemes[];
 
 // About URLs (including schemes).
+extern const char kAboutAboutURL[];
 extern const char kAboutAppCacheInternalsURL[];
 extern const char kAboutBlankURL[];
 extern const char kAboutBrowserCrash[];
 extern const char kAboutCacheURL[];
-extern const char kAboutNetInternalsURL[];
 extern const char kAboutCrashURL[];
 extern const char kAboutCreditsURL[];
+extern const char kAboutDNSURL[];
 extern const char kAboutHangURL[];
+extern const char kAboutHistogramsURL[];
+extern const char kAboutLabsURL[];
 extern const char kAboutMemoryURL[];
+extern const char kAboutNetInternalsURL[];
 extern const char kAboutPluginsURL[];
 extern const char kAboutShorthangURL[];
 extern const char kAboutSystemURL[];
 extern const char kAboutTermsURL[];
-extern const char kAboutAboutURL[];
-extern const char kAboutDNSURL[];
-extern const char kAboutHistogramsURL[];
+extern const char kAboutVaporwareURL[];
 extern const char kAboutVersionURL[];
 
 // chrome: URLs (including schemes). Should be kept in sync with the
@@ -64,10 +66,11 @@ extern const char kChromeUIDownloadsURL[];
 extern const char kChromeUIExtensionsURL[];
 extern const char kChromeUIFavIconURL[];
 extern const char kChromeUIFileBrowseURL[];
-extern const char kChromeUIHistoryURL[];
 extern const char kChromeUIHistory2URL[];
+extern const char kChromeUIHistoryURL[];
 extern const char kChromeUIImageBurnerURL[];
 extern const char kChromeUIIPCURL[];
+extern const char kChromeUILabsURL[];
 extern const char kChromeUIMediaplayerURL[];
 extern const char kChromeUINewTabURL[];
 extern const char kChromeUIOptionsURL[];
@@ -86,10 +89,11 @@ extern const char kChromeUIDownloadsHost[];
 extern const char kChromeUIExtensionsHost[];
 extern const char kChromeUIFavIconHost[];
 extern const char kChromeUIFileBrowseHost[];
-extern const char kChromeUIHistoryHost[];
 extern const char kChromeUIHistory2Host[];
+extern const char kChromeUIHistoryHost[];
 extern const char kChromeUIImageBurnerHost[];
 extern const char kChromeUIInspectorHost[];
+extern const char kChromeUILabsHost[];
 extern const char kChromeUIMediaplayerHost[];
 extern const char kChromeUINetInternalsHost[];
 extern const char kChromeUINewTabHost[];
@@ -98,13 +102,13 @@ extern const char kChromeUIPluginsHost[];
 extern const char kChromeUIPrintHost[];
 extern const char kChromeUIRegisterPageHost[];
 extern const char kChromeUIRemotingHost[];
+extern const char kChromeUIRemotingResourcesHost[];
 extern const char kChromeUIResourcesHost[];
 extern const char kChromeUIScreenshotPath[];
 extern const char kChromeUISlideshowHost[];
 extern const char kChromeUISyncResourcesHost[];
-extern const char kChromeUIRemotingResourcesHost[];
-extern const char kChromeUIThumbnailPath[];
 extern const char kChromeUIThemePath[];
+extern const char kChromeUIThumbnailPath[];
 
 // AppCache related URL.
 extern const char kAppCacheViewInternalsURL[];