Pinch begin and pinch end gestures ignore their ack dispositions.

BUG=302852
TEST=ImmediateInputRouterTest.GestureTypesIgnoringAck

Review URL: https://codereview.chromium.org/73023003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236027 0039d316-1c4b-4281-b951-d872f2087c98
Reland r235494: Create and configure CastSender Part 1

Change r235494 caused a sized regression and it was not obvious what
caused it. Landing the change in multiple smaller steps to help find out
the problem.

There is no change from r235494.

BUG=301920
TBR=scherkus

Review URL: https://codereview.chromium.org/75543007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236028 0039d316-1c4b-4281-b951-d872f2087c98
Introduce a Gin class instead of using global functions to control gin

The Gin class holds and controls a v8::Isolate. The isolate is not
entered by default, i.e. before you can use gin for a given Gin
instance, you need to enter the isolate first, e.g. by using a
v8::Isolate::Scope.

This has the advantage that we don't rely on the deprecate default
isolate, and also support having multiple isolates in one process.

BUG=317398
R=abarth@chromium.org
TEST=gin_unittests and mojo_js_bindings_unittests pass

Review URL: https://codereview.chromium.org/76353002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236029 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236028
Enable and fix BindingsConnectorTest.MessageWithHandles

BUG=None
TEST=Enabled
R=darin

Review URL: https://codereview.chromium.org/76393002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236030 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236030