[#7] Pass gfx::Size by const ref.

Any struct of size > 4 bytes should be passed by const ref. 
Passing by ref for these structs is faster than passing by value,
especially when invoking function has multiple parameters and some
other scenarios mentioned in the bug.

BUG=159273

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=247426

Review URL: https://codereview.chromium.org/145313006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247769 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247769
Add jscompile action for remoting webapp build target.

This action does a sanity check of the JavaScript files to make sure that the types are used consistently.

The jscompile build target is off by default. Use run_jscompile=1 to enable.

BUG=
R=jamiewalch@chromium.org

Review URL: https://codereview.chromium.org/149043003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247770 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247770