VideoDecodeAccelerator now SupportsWeakPtr instead of being RefCountedThreadSafe.

content/content_tests.gypi

Index: content/content_tests.gypi
diff --git a/content/content_tests.gypi b/content/content_tests.gypi
index 0320e1f7ac9c3cc4d3980de9d1c5f8a675d863f0..b4097ea637d164de46b61e0a02844e419767c8b8 100644
--- a/content/content_tests.gypi
+++ b/content/content_tests.gypi
@@ -627,7 +627,9 @@
                   '../third_party/angle/src/build_angle.gyp:libGLESv2',
                 ],
               }],
-              ['OS=="win" and win_use_allocator_shim==1', {
+              ['(OS=="win" and win_use_allocator_shim==1) or '
+               '(os_posix == 1 and OS != "mac" and OS != "android" and '
+               ' linux_use_tcmalloc==1)', {
                 'dependencies': [
                   '../base/allocator/allocator.gyp:allocator',
                 ],