Add a target all_webkit that depends on the old all_webkit and content_shell

build/all.gyp

Index: build/all.gyp
diff --git a/build/all.gyp b/build/all.gyp
index d9176a1c7c6abeaa83593536e5fa289694bc36f9..f7a4b3ebba49656965be18fda47a821489d8b1d6 100644
--- a/build/all.gyp
+++ b/build/all.gyp
@@ -61,7 +61,7 @@
             '../third_party/ots/ots.gyp:*',
             '../third_party/qcms/qcms.gyp:*',
             '../third_party/re2/re2.gyp:re2',
-            '../third_party/WebKit/Source/WebKit/chromium/All.gyp:*',
+            '../third_party/WebKit/Source/WebKit/chromium/TmpAll.gyp:*',

[abarth-chromium, 2013/05/10 16:25:50]

As discussed in the other CL, I'd prefer if we can make this:

'../third_party/WebKit/public/all.gyp:*',

Really I want '../blink/public/all.gyp:*', but that will need to wait.

             '../v8/tools/gyp/v8.gyp:*',
             '../webkit/compositor_bindings/compositor_bindings_tests.gyp:*',
             '../webkit/webkit.gyp:*',
@@ -186,6 +186,14 @@
       ],
     }, # target_name: All
     {
+      'target_name': 'all_webkit',

[abarth-chromium, 2013/05/10 16:25:50]

As mentioned in the other CL, in the long term, we want to remove the "webkit"
name from the codebase as we don't use WebKit anymore.  We don't necessarily
need to change this now, but "all_webkit" isn't the right name for this target
long-term.

+      'type': 'none',
+      'dependencies': [
+        '../third_party/WebKit/Source/WebKit/chromium/TmpAll.gyp:all_blink',
+        '../content/content.gyp:content_shell',
+      ],
+    }, # target_name: all_webkit
+    {
       'target_name': 'All_syzygy',
       'type': 'none',
       'conditions': [