Make TextureCubeMap size/format/compressed checks explicit about the level and face they are checking

Issue=306
Signed-off-by: Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@1082 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/Renderbuffer.cpp b/src/libGLESv2/Renderbuffer.cpp
index fd96ef2..f251b55 100644
--- a/src/libGLESv2/Renderbuffer.cpp
+++ b/src/libGLESv2/Renderbuffer.cpp
@@ -163,22 +163,22 @@
 
 GLsizei RenderbufferTextureCubeMap::getWidth() const
 {
-    return mTextureCubeMap->getWidth(0);
+    return mTextureCubeMap->getWidth(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0);
 }
 
 GLsizei RenderbufferTextureCubeMap::getHeight() const
 {
-    return mTextureCubeMap->getHeight(0);
+    return mTextureCubeMap->getHeight(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0);
 }
 
 GLenum RenderbufferTextureCubeMap::getInternalFormat() const
 {
-    return mTextureCubeMap->getInternalFormat();
+    return mTextureCubeMap->getInternalFormat(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0);
 }
 
 D3DFORMAT RenderbufferTextureCubeMap::getD3DFormat() const
 {
-    return mTextureCubeMap->getD3DFormat();
+    return mTextureCubeMap->getD3DFormat(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0);
 }
 
 GLsizei RenderbufferTextureCubeMap::getSamples() const