Tool to log the execution of Chrome. Initial add.

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index a6e0b5696fd5c7c1fde4b61205d3ad352321d486..ee0616568ca9f5921719ddc6a507560c3622acc8 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -201,6 +201,13 @@
       # See https://sites.google.com/a/chromium.org/dev/developers/testing/addresssanitizer
       'asan%': 0,
 
+      # Set to true to instrument the code with function call logger.
+      # See src/third_party/cygprofile/cyg-profile.cc for details.
+      'order_profiling%': 0,
+
+      # Use the provided profiled order file to link Chrome image with it.
+      'order_text_section%' : "",
+
       # Set to 1 compile with -fPIC cflag on linux. This is a must for shared
       # libraries on linux x86-64 and arm, plus ASLR.
       'linux_fpic%': 1,
@@ -394,6 +401,8 @@
     'notifications%': '<(notifications)',
     'clang_use_chrome_plugins%': '<(clang_use_chrome_plugins)',
     'asan%': '<(asan)',
+    'order_profiling%': '<(order_profiling)',
+    'order_text_section%': '<(order_text_section)',
     'enable_register_protocol_handler%': '<(enable_register_protocol_handler)',
     'enable_web_intents%': '<(enable_web_intents)',
     # Whether to build for Wayland display server
@@ -1937,6 +1946,13 @@
               'ADDRESS_SANITIZER',
             ],
           }],
+          ['order_profiling!=0 and (chromeos==1 or OS=="linux")', {
+            'target_conditions' : [
+              ['_toolset=="target"', {
+                'cflags': [ '-finstrument-functions' ],
+              }],
+            ],
+          }],
           ['no_strict_aliasing==1', {
             'cflags': [
               '-fno-strict-aliasing',