Remove calls to deprecated toWebCoreStringWithNullCheck(v8::Handle<v8::Value>)

Remove calls to deprecated toWebCoreStringWithNullCheck(v8::Handle<v8::Value>) and
use the V8TRYCATCH_FOR_V8STRINGRESOURCE*() macros instead so that we return early
if an exception is thrown by v8::String::ToString().

R=haraken
BUG=327338

Review URL: https://codereview.chromium.org/110633002

git-svn-id: svn://svn.chromium.org/blink/trunk@163708 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Make Ctrl+Tilde a shortcut to open the console.

Drive-by: Replace older experiment for using Ctrl+Tilde with a new one,
that does not open drawer on Esc.

R=pfeldman

Review URL: https://codereview.chromium.org/112743002

git-svn-id: svn://svn.chromium.org/blink/trunk@163709 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Gardening: Marking test virtual/gpu/fast/canvas/canvas-lost-gpu-context.html as flaky on Win

BUG=327698
TBR=senorblanco

Review URL: https://codereview.chromium.org/93933008

git-svn-id: svn://svn.chromium.org/blink/trunk@163710 bbb929c8-8fbe-4397-9dbb-9b2b20218538