Merge 133052 - Web Inspector: frame chooser does not work on subsequent inspector open.

Merge 133052 - Web Inspector: frame chooser does not work on subsequent inspector open.
https://bugs.webkit.org/show_bug.cgi?id=100771

Reviewed by Yury Semikhatsky.

- Make WorkerRuntimeAgent and PageRuntimeAgent register themselves in the instrumenting agents independently
- Move pause / run worker handling from InspectorRuntimeAgent into WorkerRuntimeAgent
- Remove remains of the front-end reused signal from InspectorAgent
- Send execution contexts post clear window object instead of post commit load.

* inspector/InspectorAgent.cpp:
(WebCore::InspectorAgent::InspectorAgent):
(WebCore::InspectorAgent::clearFrontend):
(WebCore::InspectorAgent::didCommitLoad):
* inspector/InspectorAgent.h:
(InspectorAgent):
* inspector/InspectorInstrumentation.cpp:
(WebCore):
(WebCore::InspectorInstrumentation::didClearWindowObjectInWorldImpl):
(WebCore::InspectorInstrumentation::willEvaluateWorkerScript):
* inspector/InspectorInstrumentation.h:
(InspectorInstrumentation):
* inspector/InspectorPageAgent.cpp:
(WebCore::InspectorPageAgent::restore):
* inspector/InspectorRuntimeAgent.cpp:
(WebCore::InspectorRuntimeAgent::InspectorRuntimeAgent):
(WebCore::InspectorRuntimeAgent::~InspectorRuntimeAgent):
(WebCore::InspectorRuntimeAgent::run):
(WebCore::InspectorRuntimeAgent::setScriptDebugServer):
* inspector/InspectorRuntimeAgent.h:
(InspectorRuntimeAgent):
* inspector/InstrumentingAgents.h:
(WebCore):
(WebCore::InstrumentingAgents::InstrumentingAgents):
(WebCore::InstrumentingAgents::workerRuntimeAgent):
(WebCore::InstrumentingAgents::setWorkerRuntimeAgent):
(InstrumentingAgents):
* inspector/PageRuntimeAgent.cpp:
(WebCore::PageRuntimeAgent::PageRuntimeAgent):
(WebCore::PageRuntimeAgent::~PageRuntimeAgent):
(WebCore::PageRuntimeAgent::setFrontend):
(WebCore::PageRuntimeAgent::clearFrontend):
(WebCore::PageRuntimeAgent::enable):
(WebCore::PageRuntimeAgent::didCreateMainWorldContext):
* inspector/PageRuntimeAgent.h:
(PageRuntimeAgent):
* inspector/WorkerRuntimeAgent.cpp:
(WebCore::WorkerRuntimeAgent::WorkerRuntimeAgent):
(WebCore::WorkerRuntimeAgent::~WorkerRuntimeAgent):
(WebCore::WorkerRuntimeAgent::run):
(WebCore):
(WebCore::WorkerRuntimeAgent::pauseWorkerContext):
* inspector/WorkerRuntimeAgent.h:
(WorkerRuntimeAgent):


TBR=pfeldman@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=133604