[wasm] Update incrementer.wasm example binary module to version 0xC.

Note that this CL depends on a V8 CL that implements binary version 0xC for WASM,
which will land momentarily.

R=titzer@chromium.org,jochen@chromium.org
BUG=chromium:575167, chromium:650655

Review-Url: https://codereview.chromium.org/2370963003
Cr-Commit-Position: refs/heads/master@{#421312}

third_party/WebKit/LayoutTests/TestExpectations

@@ -1301,3 +1301,4 @@ crbug.com/649631 [ Win7 Win10 ] fast/backgrounds/border-radius-split-background.
 crbug.com/649631 [ Win7 Win10 ] fast/backgrounds/border-radius-split-background-image.html [ NeedsRebaseline ]
 
 crbug.com/649046 fast/backgrounds/size/scaled-sprited-background.html [ NeedsRebaseline ]
+crbug.com/650655 virtual/enable_wasm/http/tests/wasm/wasm_serialization_tests.html [ NeedsManualRebaseline ]