Add a PGO tag for the PGO builds in chrome://version

Also remove the VS2013 version string as we don't support it anymore.

BUG=309849

Review-Url: https://codereview.chromium.org/2157563002
Cr-Commit-Position: refs/heads/master@{#406119}

chrome/browser/ui/webui/version_ui.cc

@@ -136,9 +136,11 @@ WebUIDataSource* CreateVersionUIDataSource() {
 #if defined(__clang__)
   html_source->AddString("compiler", "clang");
 #elif defined(_MSC_VER) && _MSC_VER == 1900
+#if BUILDFLAG(PGO_BUILD)
+  html_source->AddString("compiler", "MSVC 2015 (PGO)");
+#else
   html_source->AddString("compiler", "MSVC 2015");
-#elif defined(_MSC_VER) && _MSC_VER == 1800
-  html_source->AddString("compiler", "MSVC 2013");
+#endif
 #elif defined(_MSC_VER)
 #error "Unsupported version of MSVC."
 #else

chrome/chrome_features.gyp

@@ -20,6 +20,7 @@
           'ANDROID_JAVA_UI=<(android_java_ui)',
           'USE_VULCANIZE=<(use_vulcanize)',
           'ENABLE_PACKAGE_MASH_SERVICES=<(enable_package_mash_services)',
+          'PGO_BUILD=<(pgo_build)',
         ],
       },
     },

chrome/chrome_features.gypi

@@ -21,6 +21,11 @@
         }, {
           'enable_background%': 1,
           'enable_google_now%': 1,
+        }],
+        ['chrome_pgo_phase!=0', {
+          'pgo_build%': 1,
+        }, {
+          'pgo_build%': 0,
         }]
       ],
 
@@ -35,6 +40,7 @@
     'enable_google_now%': '<(enable_google_now)',
     'android_java_ui%': '<(android_java_ui)',
     'use_vulcanize%': '<(use_vulcanize)',
+    'pgo_build%': '<(pgo_build)',
 
     # GN only, but defined here so BUILDFLAG works without ifdef.
     'enable_package_mash_services%': 0,

chrome/common/BUILD.gn

@@ -47,6 +47,7 @@ buildflag_header("features") {
     "ENABLE_ONE_CLICK_SIGNIN=$enable_one_click_signin",
     "ENABLE_PACKAGE_MASH_SERVICES=$enable_package_mash_services",
     "USE_VULCANIZE=$use_vulcanize",
+    "PGO_BUILD=$pgo_build",
   ]
 }
 

chrome/common/features.gni

@@ -6,6 +6,7 @@
 # Please keep in sync!
 
 import("//build/config/chromecast_build.gni")
+import("//build/config/compiler/compiler.gni")
 
 declare_args() {
   enable_google_now = !is_ios && !is_android && !is_chromecast
@@ -29,6 +30,9 @@ declare_args() {
   # Set to true to bundle all the mash related mojo services into chrome.
   # Specify --mash to chrome to have chrome start the mash environment.
   enable_package_mash_services = is_chromeos
+
+  # Indicates if the build is using PGO.
+  pgo_build = chrome_pgo_phase > 0
 }
 
 chrome_grit_defines = [