https://bugs.webkit.org/show_bug.cgi?id=124326

Patch by Brian J. Burg <burg@cs.washington.edu> on 2013-12-05
Reviewed by Joseph Pecoraro.

Source/WebCore:

This adds snapshotRect() and snapshotNode() to the Page domain.
Both methods create snapshots using FrameSnapshotting APIs
and send images to the inspector frontend as a data URL.

Remove the unimplemented Page.captureScreenshot API.

* inspector/InspectorPageAgent.cpp:
(WebCore::InspectorPageAgent::snapshotNode): Added.
(WebCore::InspectorPageAgent::snapshotRect): Added.
* inspector/InspectorPageAgent.h:
* inspector/protocol/Page.json: Added new protocol APIs.

Source/WebInspectorUI:

Add method signatures for snapshotNode() and snapshotRect().
Remove method signature for unimplemented Page.captureScreenshot.

* UserInterface/InspectorBackendCommands.js:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@160202 268f45cc-cd09-0410-ab3c-d52691b4dbfc