[clang] ClangFormat: Insert braces & newline for Chromium (PR #140888)

[Owen Pan via cfe-commits]

================
@@ -5904,7 +5904,7 @@ TEST_F(FormatTest, MacrosWithoutTrailingSemicolon) {
                getLLVMStyleWithColumns(60));
 
   verifyFormat("VISIT_GL_CALL(GenBuffers, void, (GLsizei n, GLuint* buffers), "
-               "(n, buffers))",
+               "(n, buffers))\n",
                getChromiumStyle(FormatStyle::LK_Cpp));
----------------
owenca wrote:

```suggestion
               "(n, buffers))",
               getChromiumStyle());
```
You can add the following to FormatTestUtils.h and replace all `getChromiumStyle(FormatStyle::LK_Cpp)` with `getChromiumStyle()` so that the test cases in this file can be left unchanged.
```c++
@@ -24,6 +24,12 @@ inline FormatStyle getGoogleStyle() {
   return getGoogleStyle(FormatStyle::LK_Cpp);
 }
 
+inline FormatStyle getChromiumStyle() {
+  auto Style = getChromiumStyle(FormatStyle::LK_Cpp);
+  Style.InsertNewlineAtEOF = false;
+  return Style;
+}
+
 // When HandleHash is false, preprocessor directives starting with hash will not
 // be on separate lines.  This is needed because Verilog uses hash for other
 // purposes.
```

https://github.com/llvm/llvm-project/pull/140888