Clean-up: Rename a few methods in FullscreenController for clarity.

There are NO functional changes here (except NULL DCHECKs in browser_commands.cc).  Renaming being done:

1. Un-overloaded the IsFullscreenForTabOrPending() method, with the zero-arg method becoming IsWindowFullscreenForTabOrPending() to clarify that it measures the browser window fullscreen state.  Discussed here: https://codereview.chromium.org/158253002/diff/1/chrome/browser/ui/fullscreen/fullscreen_controller.h#newcode74

2. ToggleFullscreenMode() renamed to ToggleBrowserFullscreenMode() to make the method's behavior less ambiguous.

R=scheib@chromium.org, sky@chromium.org

Review URL: https://codereview.chromium.org/193863003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256385 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256385
Share psuggest deletion code with zero suggest.

This is pre-requisite for https://codereview.chromium.org/189403006/
which implements zero suggest with personalized suggestions. This CL
moves the deletion logic into the superclass for both search and
zero suggest to use it.

BUG=324043
TBR=mpearson

Review URL: https://codereview.chromium.org/189833003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256387 0039d316-1c4b-4281-b951-d872f2087c98
Remove unused kDisable4444Textures flag

BUG=none

Review URL: https://codereview.chromium.org/189603003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256388 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256387
Add logging of reason for URLRequestRedirectJobs,
so it's possible to tell if a request came from HSTS,
an extension, or the protocol handler registry, for
easier debugging.

BUG=350912

Review URL: https://codereview.chromium.org/192823003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256389 0039d316-1c4b-4281-b951-d872f2087c98
linux_aura: run IconLoader::ReadIcon on the UI thread.

The implementation goes through GTK's native icon routines which are not
thread-safe.

BUG=350545

Review URL: https://codereview.chromium.org/192883004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256391 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256392 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 256392