Move context-related callbacks into OutputSurface

cc/gl_renderer_unittest.cc

Index: cc/gl_renderer_unittest.cc
diff --git a/cc/gl_renderer_unittest.cc b/cc/gl_renderer_unittest.cc
index f9c24bafb882eb1acc1911960d67d0b8b9c4ea2d..3226968593417270cdb3a5cb70b25bd81f3f34a3 100644
--- a/cc/gl_renderer_unittest.cc
+++ b/cc/gl_renderer_unittest.cc
@@ -80,8 +80,6 @@ public:
     // RendererClient methods.
     virtual gfx::Size DeviceViewportSize() const OVERRIDE { static gfx::Size fakeSize(1, 1); return fakeSize; }
     virtual const LayerTreeSettings& Settings() const OVERRIDE { static LayerTreeSettings fakeSettings; return fakeSettings; }
-    virtual void DidLoseOutputSurface() OVERRIDE { }
-    virtual void OnSwapBuffersComplete() OVERRIDE { }
     virtual void SetFullRootLayerDamage() OVERRIDE { m_setFullRootLayerDamageCount++; }
     virtual void SetManagedMemoryPolicy(const ManagedMemoryPolicy& policy) OVERRIDE { m_memoryAllocationLimitBytes = policy.bytesLimitWhenVisible; }
     virtual void EnforceManagedMemoryPolicy(const ManagedMemoryPolicy& policy) OVERRIDE { if (m_lastCallWasSetVisibility) *m_lastCallWasSetVisibility = false; }