[DevTools] Remove & add required methods

R=dgozman, pfeldman
BUG=

Review-Url: https://codereview.chromium.org/2192333002
Cr-Commit-Position: refs/heads/master@{#408838}

third_party/WebKit/Source/platform/v8_inspector/public/V8Inspector.cpp

@@ -25,11 +25,6 @@ V8Inspector::~V8Inspector()
     disconnectFrontend();
 }
 
-bool V8Inspector::callingContextCanAccessContext(v8::Local<v8::Context> calling, v8::Local<v8::Context> target)
-{
-    return true;
-}
-
 String16 V8Inspector::valueSubtype(v8::Local<v8::Value> value)
 {
     return String16();

third_party/WebKit/Source/platform/v8_inspector/public/V8Inspector.h

@@ -36,7 +36,6 @@ public:
     void notifyContextDestroyed();
 
 private:
-    bool callingContextCanAccessContext(v8::Local<v8::Context> calling, v8::Local<v8::Context> target) override;
     String16 valueSubtype(v8::Local<v8::Value>) override;
     bool formatAccessorsAsProperties(v8::Local<v8::Value>) override;
     void muteWarningsAndDeprecations(int) override { }
@@ -45,6 +44,8 @@ private:
 
     bool isExecutionAllowed() override;
     v8::Local<v8::Context> ensureDefaultContextInGroup(int contextGroupId) override;
+    void beginEnsureAllContextsInGroup(int contextGroupId) override { }
+    void endEnsureAllContextsInGroup(int contextGroupId) override { }
     void beginUserGesture() override { }
     void endUserGesture() override { }
     bool isInspectableHeapObject(v8::Local<v8::Object>) override { return true; }
@@ -63,8 +64,6 @@ private:
     void cancelTimer(void* data) override { }
 
     // V8InspectorSessionClient
-    void runtimeEnabled() override { };
-    void runtimeDisabled() override { };
     void resumeStartup() override { };
     bool canExecuteScripts() override;
     void profilingStarted() override { };