Set correct internalformat info for TexStorageEXT for WebGL1 context

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 46dc8961d05d4aeb10b72cdd9b1fe1e984276946..2c68eb9576004072e41cbef637cc4cb6c537f995 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -16747,9 +16747,10 @@ void GLES2DecoderImpl::TexStorageImpl(GLenum target,
     GLsizei level_height = height;
     GLsizei level_depth = depth;
 
-    GLenum adjusted_internal_format =
-        feature_info_->context_type() == CONTEXT_TYPE_OPENGLES2 ?
-        format : internal_format;
+    const bool is_es2 =
+        feature_info_->context_type() == CONTEXT_TYPE_OPENGLES2 ||
+        feature_info_->context_type() == CONTEXT_TYPE_WEBGL1;

[qiankun, 2016/12/02 10:10:38]

You can use feature_info_->IsWebGL1OrES2Context() here.

[dshwang, 2016/12/02 17:54:20]

Good point! Done.

+    GLenum adjusted_internal_format = is_es2 ? format : internal_format;
     for (int ii = 0; ii < levels; ++ii) {
       if (target == GL_TEXTURE_CUBE_MAP) {
         for (int jj = 0; jj < 6; ++jj) {