Rename Framebuffer::completeness to checkStatus and add an Impl method.

BUG=angle:841

Change-Id: I04b4ffd086424569a15aa21447dd552e0a898928
Reviewed-on: https://chromium-review.googlesource.com/232394
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/validationES.cpp b/src/libANGLE/validationES.cpp
index 3f144bd..8294d74 100644
--- a/src/libANGLE/validationES.cpp
+++ b/src/libANGLE/validationES.cpp
@@ -497,13 +497,13 @@
         return false;
     }
 
-    if (!readFramebuffer->completeness(context->getData()))
+    if (!readFramebuffer->checkStatus(context->getData()))
     {
         context->recordError(Error(GL_INVALID_FRAMEBUFFER_OPERATION));
         return false;
     }
 
-    if (!drawFramebuffer->completeness(context->getData()))
+    if (!drawFramebuffer->checkStatus(context->getData()))
     {
         context->recordError(Error(GL_INVALID_FRAMEBUFFER_OPERATION));
         return false;
@@ -926,7 +926,7 @@
     gl::Framebuffer *framebuffer = context->getState().getReadFramebuffer();
     ASSERT(framebuffer);
 
-    if (framebuffer->completeness(context->getData()) != GL_FRAMEBUFFER_COMPLETE)
+    if (framebuffer->checkStatus(context->getData()) != GL_FRAMEBUFFER_COMPLETE)
     {
         context->recordError(Error(GL_INVALID_FRAMEBUFFER_OPERATION));
         return false;
@@ -1187,7 +1187,7 @@
         {
             Framebuffer *framebuffer = context->getState().getReadFramebuffer();
             ASSERT(framebuffer);
-            if (framebuffer->completeness(context->getData()) != GL_FRAMEBUFFER_COMPLETE)
+            if (framebuffer->checkStatus(context->getData()) != GL_FRAMEBUFFER_COMPLETE)
             {
                 context->recordError(Error(GL_INVALID_OPERATION));
                 return false;
@@ -1251,7 +1251,7 @@
     }
 
     gl::Framebuffer *framebuffer = context->getState().getReadFramebuffer();
-    if (framebuffer->completeness(context->getData()) != GL_FRAMEBUFFER_COMPLETE)
+    if (framebuffer->checkStatus(context->getData()) != GL_FRAMEBUFFER_COMPLETE)
     {
         context->recordError(Error(GL_INVALID_FRAMEBUFFER_OPERATION));
         return false;
@@ -1456,7 +1456,7 @@
     }
 
     const gl::Framebuffer *fbo = state.getDrawFramebuffer();
-    if (!fbo || fbo->completeness(context->getData()) != GL_FRAMEBUFFER_COMPLETE)
+    if (!fbo || fbo->checkStatus(context->getData()) != GL_FRAMEBUFFER_COMPLETE)
     {
         context->recordError(Error(GL_INVALID_FRAMEBUFFER_OPERATION));
         return false;