Fix ValidateCompressedTexSubDimensions for bptc and rgtc

CompressedTexSubImage* will result in an
INVALID_OPERATION error only if one of the following conditions occurs:

* <width> is not a multiple of four, and <width> plus <xoffset> is not
          equal to TEXTURE_WIDTH;

* <height> is not a multiple of four, and <height> plus <yoffset> is
          not equal to TEXTURE_HEIGHT; or

* <xoffset> or <yoffset> is not a multiple of four.

Bug: 1013369
Change-Id: I2ca55cf10a7d0c96792f9677e016a6a137c597b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2063583Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Shrek Shao <shrekshao@google.com>
Cr-Commit-Position: refs/heads/master@{#742445}

gpu/command_buffer/service/gl_utils.cc

@@ -756,7 +756,15 @@ bool ValidateCompressedTexSubDimensions(GLenum target,
     case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
     case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
     case GL_COMPRESSED_RGBA8_ETC2_EAC:
-    case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: {
+    case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
+    case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT:
+    case GL_COMPRESSED_RGBA_BPTC_UNORM_EXT:
+    case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT:
+    case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT:
+    case GL_COMPRESSED_RED_RGTC1_EXT:
+    case GL_COMPRESSED_SIGNED_RED_RGTC1_EXT:
+    case GL_COMPRESSED_RED_GREEN_RGTC2_EXT:
+    case GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT: {
       const int kBlockSize = 4;
       GLsizei tex_width, tex_height;
       if (target == GL_TEXTURE_3D ||