Delete TimelineTracingView

Now that corresponding experiment was removed there is no way to see the view. Also removing TimelineFlameChartDataProvider which is not used in tracing based Timeline and we don't show flame chart in other modes.

BUG=361045,394762
R=alph@chromium.org

Review URL: https://codereview.chromium.org/402653002

git-svn-id: svn://svn.chromium.org/blink/trunk@178425 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Gracefully handle FileReader() read operations when in a detached state.

Follow up r178274 and have FileReader handle the case when it becomes
detached from its document and its frame. Read operations can no longer
go ahead when that is the case, as the throttling controller isn't
available.

R=haraken@chromium.org,horo@chromium.org,nhiroki@chromium.org,kinuko@chromium.org
BUG=394828

Review URL: https://codereview.chromium.org/399863002

git-svn-id: svn://svn.chromium.org/blink/trunk@178426 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: do not trigger autocomplete on deletion

Currently, deletion of a single letter in the end of the
word will trigger autocompletion (if any). As this is considered
disturbing, this patch switches off autocompletion summoning for
this case.

R=vsevik, pfeldman

Review URL: https://codereview.chromium.org/399193002

git-svn-id: svn://svn.chromium.org/blink/trunk@178427 bbb929c8-8fbe-4397-9dbb-9b2b20218538