Force GC on Promise Pane cleaning and refreshing.

BUG=348919

Review URL: https://codereview.chromium.org/708103002

git-svn-id: svn://svn.chromium.org/blink/trunk@186177 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Move "frame" field inside "data" in trace events.

Review URL: https://codereview.chromium.org/751393003

git-svn-id: svn://svn.chromium.org/blink/trunk@186178 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Fix advanced search field focus on shortcut when creating the view

R=vsevik
BUG=437467

Review URL: https://codereview.chromium.org/765063002

git-svn-id: svn://svn.chromium.org/blink/trunk@186182 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: [SSP] introduce WI.SectionCascade which computes used properties

This patch introduces new class WebInspector.SectionCascade, which
incapsulates used properties information for StyleSectionModels. In order
to do that, this class becomes a factory for StyleSectionModels.

R=vsevik

Review URL: https://codereview.chromium.org/769453003

git-svn-id: svn://svn.chromium.org/blink/trunk@186183 bbb929c8-8fbe-4397-9dbb-9b2b20218538