MacViews: Clip contents for non-rectangular windows.

ui/views/views.gyp

Index: ui/views/views.gyp
diff --git a/ui/views/views.gyp b/ui/views/views.gyp
index 584513d222f9add9f2550966bef8180f7e474299..79e63549d886569d8716b1dd75cba2302a09c381 100644
--- a/ui/views/views.gyp
+++ b/ui/views/views.gyp
@@ -788,6 +788,7 @@
         }],
         ['OS=="mac"', {
           'dependencies': [
+            '../../third_party/google_toolbox_for_mac/google_toolbox_for_mac.gyp:google_toolbox_for_mac',
             '../accelerated_widget_mac/accelerated_widget_mac.gyp:accelerated_widget_mac',
           ],
           'link_settings': {
@@ -795,6 +796,12 @@
               # Required by bridged_native_widget.mm.
               '$(SDKROOT)/System/Library/Frameworks/QuartzCore.framework',
             ],
+            'conditions': [
+              ['component=="static_library"', {
+                # Needed to link to Obj-C static libraries.

[karandeepb, 2016/03/04 03:01:56]

I am not sure if this needs to be added to a gn file as well. The trybots pass
without it. Also, I can't seem to find a direct analogous of link_settings in
gn. 

[tapted, 2016/03/04 04:15:01]

ldflags += [ "-Wl,-ObjC" ]

would probably do it.

I think the Mac-GN trybot [assuming there is one] currently just builds, and
doesn't try to run anything, which is why this probably hasn't come up in the
past.

Can you try running components_unittests in GN build locally on Mac, to see if
it's needed? 

(there might be an explosion of other problems, or components_unittests might
not even be built at all, but we should try not to leave problems for us later
on, since these errors are really hard to diagnose)

+                'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-ObjC']},
+              }],
+            ],
           },
         }],
       ],