EME browser tests to check actual type of exception

The EME browser tests are updated to check the actual exception name rather than
the generic "Generate_Key_Request_Exception".

BUG=307801
TEST=Affected tests still pass.

Review URL: https://codereview.chromium.org/26211007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229264 0039d316-1c4b-4281-b951-d872f2087c98
Prevent key drop if finger moves out of key area slightly before release


When typing quickly, it is quite possible that users move their fingers
slightly out of the key area before release the key. This is likely an
unintended move and the key shouldn't be dropped.

We also increased the triggering condition of swipe gesture to reduce
the accidental cursor movement.

BUG=301631

Review URL: https://codereview.chromium.org/26233005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229265 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229265
[Files.app] Remove 1px stroke of the triangle in the treeview

This patch changes the color of the stroke to transparent. As I tested, it looks better than changing the stroke color into the same color as background.

BUG=252882
TEST=manually tested

Review URL: https://codereview.chromium.org/26497006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229266 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229266