Revert 163477 - Fix glTexSubImage2D for non-32bpp formats.

cc/texture.cc

Index: cc/texture.cc
===================================================================
--- cc/texture.cc	(revision 163484)
+++ cc/texture.cc	(working copy)
@@ -5,7 +5,6 @@
 #include "config.h"
 
 #include "cc/texture.h"
-#include "third_party/khronos/GLES2/gl2ext.h"
 
 namespace cc {
 
@@ -23,27 +22,11 @@
     return memorySizeBytes(m_size, m_format);
 }
 
-size_t Texture::bytesPerPixel(GLenum format)
+size_t Texture::memorySizeBytes(const IntSize& size, GLenum format)
 {
-    unsigned int componentsPerPixel = 0;
+    unsigned int componentsPerPixel = 4;
     unsigned int bytesPerComponent = 1;
-    switch (format) {
-    case GL_RGBA:
-    case GL_BGRA_EXT:
-        componentsPerPixel = 4;
-        break;
-    case GL_LUMINANCE:
-        componentsPerPixel = 1;
-        break;
-    default:
-        NOTREACHED();
-    }
-    return componentsPerPixel * bytesPerComponent;
+    return componentsPerPixel * bytesPerComponent * size.width() * size.height();
 }
 
-size_t Texture::memorySizeBytes(const IntSize& size, GLenum format)
-{
-    return bytesPerPixel(format) * size.width() * size.height();
 }
-
-}