[SuperSize] Update wasmbuild.patch for Caspian.

This CL adds adjustment to /build/config/compiler/BUILD.gn, to exclude
  ldflags += [ "-Wl,--no-call-graph-profile-sort" ]
for WASM. The flag usage was added in http://crrev.com/c/2332591, but
it's not yet supported by wasm-ld.

Change-Id: I04b1e81569e23f6a0b6f44b5e5544e30a3b0433d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2359401
Auto-Submit: Samuel Huang <huangs@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798613}

tools/binary_size/libsupersize/caspian/wasmbuild.patch

 diff --git a/build/config/BUILDCONFIG.gn b/build/config/BUILDCONFIG.gn
-index 59dace167eef..ebbe3f37d101 100644
+index e011502180b5..9e55fcd6c74f 100644
 --- a/build/config/BUILDCONFIG.gn
 +++ b/build/config/BUILDCONFIG.gn
 @@ -291,10 +291,11 @@ is_ios = current_os == "ios"
@@ -16,10 +16,10 @@ index 59dace167eef..ebbe3f37d101 100644
  # =============================================================================
  # SOURCES FILTERS
 diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
-index f4ba837449b5..0fe4f8247c68 100644
+index 0b5de5cd7173..ff761c9b46b3 100644
 --- a/build/config/compiler/BUILD.gn
 +++ b/build/config/compiler/BUILD.gn
-@@ -578,6 +578,19 @@ config("compiler") {
+@@ -581,6 +581,19 @@ config("compiler") {
      ldflags += [ "-stdlib=libc++" ]
    }
  
@@ -39,7 +39,16 @@ index f4ba837449b5..0fe4f8247c68 100644
    # Add flags for link-time optimization. These flags enable
    # optimizations/transformations that require whole-program visibility at link
    # time, so they need to be applied to all translation units, and we may end up
-@@ -1495,7 +1508,8 @@ config("default_warnings") {
+@@ -704,7 +717,7 @@ config("compiler") {
+   if (use_lld) {
+     if (is_win) {
+       ldflags += [ "/call-graph-profile-sort:no" ]
+-    } else {
++    } else if (!is_wasm) {
+       ldflags += [ "-Wl,--no-call-graph-profile-sort" ]
+     }
+   }
+@@ -1510,7 +1523,8 @@ config("default_warnings") {
          cflags += [ "-Wno-nonportable-include-path" ]
        }
  
@@ -49,7 +58,7 @@ index f4ba837449b5..0fe4f8247c68 100644
          # Flags NaCl (Clang 3.7) and Xcode 9.2 (Clang clang-900.0.39.2) do not
          # recognize.
          cflags += [
-@@ -2257,6 +2271,9 @@ config("symbols") {
+@@ -2275,6 +2289,9 @@ config("symbols") {
          "-debug-info-kind=constructor",
        ]
      }