fix whitespace from 2 to 4

src/anbox/graphics/emugl/ColorBuffer.cpp

@@ -75,7 +75,7 @@ void unbindFbo() { s_gles2.glBindFramebuffer(GL_FRAMEBUFFER, 0); }
 //     }   // automatically calls m_helper->teardownContext();
 //
 class ScopedHelperContext {
- public:
+public:
     ScopedHelperContext(ColorBuffer::Helper* helper) : mHelper(helper) {
         if (!helper->setupContext()) {
         mHelper = NULL;
@@ -93,7 +93,7 @@ class ScopedHelperContext {
         }
     }
 
- private:
+private:
     ColorBuffer::Helper* mHelper;
 };