Merge the various TextureCube::setImage* methods.

BUG=angle:520

Change-Id: I4e8191dd827744ef380348a31dce7181d99fbf30
Reviewed-on: https://chromium-review.googlesource.com/216645
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libGLESv2/Context.cpp b/src/libGLESv2/Context.cpp
index d4304c4..5a5e3a0 100644
--- a/src/libGLESv2/Context.cpp
+++ b/src/libGLESv2/Context.cpp
@@ -2097,12 +2097,12 @@
             {
               TextureCubeMap *incompleteCube = new TextureCubeMap(mRenderer->createTexture(GL_TEXTURE_CUBE_MAP), Texture::INCOMPLETE_TEXTURE_ID);
 
-              incompleteCube->setImagePosX(0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
-              incompleteCube->setImageNegX(0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
-              incompleteCube->setImagePosY(0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
-              incompleteCube->setImageNegY(0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
-              incompleteCube->setImagePosZ(0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
-              incompleteCube->setImageNegZ(0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
+              incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
+              incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
+              incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
+              incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
+              incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
+              incompleteCube->setImage(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
 
               t = incompleteCube;
             }