Remove dependency on scan-build wrapper script for Clang analysis builds.

build/toolchain/win/BUILD.gn

Index: build/toolchain/win/BUILD.gn
diff --git a/build/toolchain/win/BUILD.gn b/build/toolchain/win/BUILD.gn
index dd1017fb3d9f4f08d0b2f6fa34e1d307b228956f..7cc307ab629d4225f0bacd8b37066240ed0db183 100644
--- a/build/toolchain/win/BUILD.gn
+++ b/build/toolchain/win/BUILD.gn
@@ -6,6 +6,7 @@ import("//build/config/clang/clang.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/win/visual_studio_version.gni")
+import("//build/toolchain/clang_static_analyzer.gni")
 import("//build/toolchain/goma.gni")
 import("//build/toolchain/toolchain.gni")
 
@@ -27,6 +28,13 @@ if (use_goma) {
   goma_prefix = ""
 }
 
+# Path to the Clang static analysis wrapper script.
+if (is_clang && use_clang_static_analyzer) {
+  analyzer_prefix = "$python_path " + rebase_path(
+                        "//build/toolchain/clang_static_analyzer_wrapper.py",
+                        root_build_dir) + " --clang-prefix=\"-Xclang\" "
+}
+
 # Copy the VS runtime DLL for the default toolchain to the root build directory
 # so things will run.
 if (current_toolchain == default_toolchain) {
@@ -380,7 +388,7 @@ template("win_x64_toolchains") {
   msvc_toolchain("clang_" + target_name) {
     environment = "environment.x64"
     prefix = rebase_path("$clang_base_path/bin", root_build_dir)
-    cl = "${goma_prefix}$prefix/${clang_cl}"
+    cl = "${analyzer_prefix}${goma_prefix}$prefix/${clang_cl}"
     sys_include_flags = "${x64_toolchain_data.include_flags_imsvc}"
 
     toolchain_args = {