Keep deinlining stuff.

app/gfx/gl/gl_context_stub.h

Index: app/gfx/gl/gl_context_stub.h
diff --git a/app/gfx/gl/gl_context_stub.h b/app/gfx/gl/gl_context_stub.h
index 0037044b4c889e4dc79281d3116048343d2c68dd..d4a1e18ed4ea6550770f7a8deec878f3340e8968 100644
--- a/app/gfx/gl/gl_context_stub.h
+++ b/app/gfx/gl/gl_context_stub.h
@@ -15,16 +15,18 @@ namespace gfx {
 // A GLContext that does nothing for unit tests.
 class StubGLContext : public gfx::GLContext {
  public:
+  virtual ~StubGLContext();
+
   // Implement GLContext.
   virtual void Destroy() {}
-  virtual bool MakeCurrent() { return true; }
-  virtual bool IsCurrent() { return true; }
-  virtual bool IsOffscreen() { return false; }
-  virtual bool SwapBuffers() { return true; }
-  virtual gfx::Size GetSize() { return size_; }
-  virtual void* GetHandle() { return NULL; }
+  virtual bool MakeCurrent();
+  virtual bool IsCurrent();
+  virtual bool IsOffscreen();
+  virtual bool SwapBuffers();
+  virtual gfx::Size GetSize();
+  virtual void* GetHandle();
   virtual void SetSwapInterval(int interval) {}
-  virtual std::string GetExtensions() { return std::string(); }
+  virtual std::string GetExtensions();
 
   void SetSize(const gfx::Size& size) { size_ = size; }