Enable TouchIconLoading flag for android builds only.
Depends on https://codereview.chromium.org/132163002

BUG=332863

Review URL: https://codereview.chromium.org/132173002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244575 0039d316-1c4b-4281-b951-d872f2087c98
Explicitly implement copy ctor/assignment operator for IndexedDBKey

The implicit implementations by the compiler are inlined, and lead
to ~8k of unnecessary code.

R=bratell@opera.com
BUG=333205

Review URL: https://codereview.chromium.org/136853003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244576 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244575
SVN changes up to revision 244576