Add new target for building qa-related targets on the qa waterfall.

Only depend on pyautolib if the target exists.
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6368109

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@73859 0039d316-1c4b-4281-b951-d872f2087c98

build/all.gyp

@@ -217,7 +217,21 @@
         '../chrome/chrome.gyp:gpu_tests',
         '../third_party/WebKit/Source/WebKit/chromium/WebKit.gyp:DumpRenderTree',
       ],
-    }
+    }, # target_name: chromium_gpu_builder
+    {
+      'target_name': 'chromium_builder_qa',
+      'type': 'none',
+      'dependencies': [
+        '../chrome/chrome.gyp:chromedriver',
+      ],
+      'conditions': [
+        ['OS=="mac" or OS=="win" or (OS=="linux" and target_arch==python_arch)', {
+          'dependencies': [
+            '../chrome/chrome.gyp:pyautolib',
+          ],
+        }], # 'OS=="mac" or OS=="win" or (OS=="linux" and target_arch==python_arch)'
+      ],
+    }, # target_name: chromium_builder_qa
   ],
   'conditions': [
     ['OS=="mac"', {

chrome/chrome_tests.gypi

@@ -3375,6 +3375,8 @@
         },
       ]},  # 'targets'
     ],  # OS=="win"
+    # If you change this condition, make sure you also change it in all.gyp
+    # for the chromium_builder_qa target.
     ['OS=="mac" or OS=="win" or (OS=="linux" and target_arch==python_arch)', {
       'targets': [
         {