Added command line switches and UI (controlled via a build option)

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index 6044b5276044f314d6536c7861b052edb6dbdfe1..89e51c5a491f42c95a5ad5f8b9169b8fdf54a36b 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -23,10 +23,14 @@
 
           # Disable touch support by default.
           'touchui%': 0,
+          
+          # Disable profiling build by default.
+          'profiling%': 0,

[Evan Martin, 2011/02/01 02:45:59]

Gyp is super-confusing, but you can either ask me about it or trust me that you
can eliminate this line...

[DaveMoore, 2011/02/01 19:21:55]

Done.

         },
         # Copy conditionally-set variables out one scope.
         'chromeos%': '<(chromeos)',
         'touchui%': '<(touchui)',
+        'profiling%': '<(profiling)',

[Evan Martin, 2011/02/01 02:45:59]

And this one...

[DaveMoore, 2011/02/01 19:21:55]

Done.

 
         # To do a shared build on linux we need to be able to choose between
         # type static_library and shared_library. We default to doing a static
@@ -61,6 +65,7 @@
       # Copy conditionally-set variables out one scope.
       'chromeos%': '<(chromeos)',
       'touchui%': '<(touchui)',
+      'profiling%': '<(profiling)',

[Evan Martin, 2011/02/01 02:45:59]

and this one...

[DaveMoore, 2011/02/01 19:21:55]

Done.

       'host_arch%': '<(host_arch)',
       'library%': '<(library)',
       'toolkit_views%': '<(toolkit_views)',
@@ -166,6 +171,7 @@
     'enable_flapper_hacks%': '<(enable_flapper_hacks)',
     'chromeos%': '<(chromeos)',
     'touchui%': '<(touchui)',
+    'profiling%': '<(profiling)',

[Evan Martin, 2011/02/01 02:45:59]

And then move this one a bit lower, where you'll see there are some introduced
there that are commented.  So move this line down to there and move the comment
from above to join it.

[DaveMoore, 2011/02/01 19:21:55]

Done.

     'inside_chromium_build%': '<(inside_chromium_build)',
     'fastbuild%': '<(fastbuild)',
     'python_ver%': '<(python_ver)',
@@ -536,6 +542,9 @@
       ['touchui==1', {
         'defines': ['TOUCH_UI=1'],
       }],
+      ['profiling==1', {
+        'defines': ['ENABLE_PROFILING=1'],
+      }],
       ['remoting==1', {
         'defines': ['ENABLE_REMOTING=1'],
       }],
@@ -1014,6 +1023,12 @@
                   '-fno-ident',
                 ],
               }],
+              ['profiling==1', {
+                'cflags': [
+                  '-fno-omit-frame-pointer',
+                  '-g',
+                ],
+              }],
             ]
           },
         },