Update from https://crrev.com/307330

ui/gl/gl_gl_api_implementation.cc

Index: ui/gl/gl_gl_api_implementation.cc
diff --git a/ui/gl/gl_gl_api_implementation.cc b/ui/gl/gl_gl_api_implementation.cc
index 017e123eb1ff5f566031b9018a6cc2dff715090d..7f6a647fb54c81a52624529cb8d697a7a48aee7d 100644
--- a/ui/gl/gl_gl_api_implementation.cc
+++ b/ui/gl/gl_gl_api_implementation.cc
@@ -48,6 +48,42 @@ static inline GLenum GetTexInternalFormat(GLenum internal_format,
 
   // g_version_info must be initialized when this function is bound.
   DCHECK(gfx::g_version_info);
+  if (gfx::g_version_info->is_es3) {
+    if (format == GL_RED_EXT) {
+      switch (type) {
+        case GL_UNSIGNED_BYTE:
+          gl_internal_format = GL_R8_EXT;
+          break;
+        case GL_HALF_FLOAT_OES:
+          gl_internal_format = GL_R16F_EXT;
+          break;
+        case GL_FLOAT:
+          gl_internal_format = GL_R32F_EXT;
+          break;
+        default:
+          NOTREACHED();
+          break;
+      }
+      return gl_internal_format;
+    } else if (format == GL_RG_EXT) {
+      switch (type) {
+        case GL_UNSIGNED_BYTE:
+          gl_internal_format = GL_RG8_EXT;
+          break;
+        case GL_HALF_FLOAT_OES:
+          gl_internal_format = GL_RG16F_EXT;
+          break;
+        case GL_FLOAT:
+          gl_internal_format = GL_RG32F_EXT;
+          break;
+        default:
+          NOTREACHED();
+          break;
+      }
+      return gl_internal_format;
+    }
+  }
+
   if (type == GL_FLOAT && gfx::g_version_info->is_angle &&
       gfx::g_version_info->is_es2) {
     // It's possible that the texture is using a sized internal format, and