Add initial version of DevTools Profiler

webkit/glue/devtools/debugger_agent_impl.cc

Index: webkit/glue/devtools/debugger_agent_impl.cc
===================================================================
--- webkit/glue/devtools/debugger_agent_impl.cc	(revision 15955)
+++ webkit/glue/devtools/debugger_agent_impl.cc	(working copy)
@@ -58,11 +58,31 @@
   delegate_->DidGetContextId(webdevtools_agent_->host_id());
 }
 
+void DebuggerAgentImpl::StartProfiling() {
+  v8::V8::ResumeProfiler();
+}
+
+void DebuggerAgentImpl::StopProfiling() {
+  v8::V8::PauseProfiler();
+}
+
+void DebuggerAgentImpl::GetLogLines(int position) {
+  static char buffer[65536];
+  int read_size = v8::V8::GetLogLines(position, buffer, sizeof(buffer) - 1);
+  buffer[read_size] = '\0';
+  DidGetLogLines(buffer, position + read_size);
+}
+
 void DebuggerAgentImpl::DebuggerOutput(const std::string& command) {
   delegate_->DebuggerOutput(command);
   webdevtools_agent_->ForceRepaint();
 }
 
+void DebuggerAgentImpl::DidGetLogLines(
+    const std::string& log, int new_position) {
+  delegate_->DidGetLogLines(log, new_position);
+}
+
 // static
 void DebuggerAgentImpl::ResetUtilityContext(
     Document* document,