Revert "Remove absolute paths from build files"

This reverts commit 8dbc0c82.

Reason for revert: broke https://ci.chromium.org/buildbot/chromium.chrome/Google%20Chrome%20Linux%20x64/32416

Original change's description:
> Remove absolute paths from build files
> 
> This CL removes all absolute paths to src and all usages of the out directory
> name from all ninja files on most Linux builds.
> 
> This means it's possible to mount your src directory at different locations and
> still have incremental builds work.  You can also rename your out directory.
> 
> BUG=None
> R=​dpranke,caitkp,rockot
> 
> Change-Id: I5ff5b0d2d60110755dde64e876c7f1a09d814b1a
> Reviewed-on: https://chromium-review.googlesource.com/1091457
> Reviewed-by: Cait Phillips <caitkp@chromium.org>
> Reviewed-by: Ken Rockot <rockot@chromium.org>
> Reviewed-by: Dirk Pranke <dpranke@chromium.org>
> Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#567020}

TBR=caitkp@chromium.org,rockot@chromium.org,dpranke@chromium.org,thomasanderson@chromium.org

Change-Id: Iec959adc2e8c82dd191f382c0cfb197aea406fc3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: None
Reviewed-on: https://chromium-review.googlesource.com/1099979Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567038}

build/config/compiler/BUILD.gn

@@ -511,8 +511,8 @@ config("compiler") {
   # clang-cl (used if is_win) doesn't expose this flag.
   # Currently disabled for nacl since its toolchain lacks this flag (too old).
   # TODO(zforman): Once nacl's toolchain is updated, remove check.
-  if (symbol_level != 0 && is_clang && !is_nacl && !is_win && !is_mac &&
-      !is_ios && strip_absolute_paths_from_debug_symbols) {
+  if (is_clang && !is_nacl && !is_win && !is_mac && !is_ios &&
+      strip_absolute_paths_from_debug_symbols) {
     # This is resolved to path like "$HOME/chromium/src/out/Release".
     # If debug option is given, clang includes $cwd in debug info.
     # In such build, this flag generates reproducible obj files
@@ -2048,8 +2048,7 @@ if (is_clang && current_toolchain == default_toolchain) {
            "Our default profiles currently only apply to Chromium")
     assert(is_android || is_desktop_linux,
            "The current platform has no default profile")
-    _clang_sample_profile =
-        rebase_path("//chrome/android/profiles/afdo.prof", root_build_dir)
+    _clang_sample_profile = rebase_path("//chrome/android/profiles/afdo.prof")
   }
 }
 

components/metrics/generate_expired_histograms_array.gni

@@ -46,7 +46,7 @@ template("generate_expired_histograms_array") {
               "-o" + rebase_path(root_gen_dir, root_build_dir),
               "-H" + rebase_path(header_filename, root_gen_dir),
               "-d" + rebase_path(major_branch_date_filepath, root_build_dir),
-              "-m" + rebase_path(milestone_filepath, root_build_dir),
+              "-m" + rebase_path(milestone_filepath),
             ] + rebase_path(inputs, root_build_dir)
   }
 }

components/subresource_filter/tools/BUILD.gn

@@ -100,14 +100,18 @@ if (!is_ios) {
     ]
 
     inputs = [
-      "//components/subresource_filter/core/common/perftests/data/UnindexedRules_7.54",
+      # Make sure the inputs are system-absolute, as base::File cannot open files with ".." components.
+      rebase_path(
+          "//components/subresource_filter/core/common/perftests/data/UnindexedRules_7.54",
+          "",
+          "/"),
     ]
     deps = [
       ":subresource_indexing_tool",
     ]
 
     args = [
-      rebase_path(inputs[0], root_build_dir),
+      inputs[0],
       rebase_path("$target_gen_dir/GeneratedRulesetData", root_build_dir),
     ]
   }

components/subresource_filter/tools/indexing_tool.cc

@@ -23,7 +23,7 @@ bool IndexAndWriteRuleset(const base::FilePath& unindexed_path,
     return false;
   }
 
-  base::File unindexed_file(base::MakeAbsoluteFilePath(unindexed_path),
+  base::File unindexed_file(unindexed_path,
                             base::File::FLAG_OPEN | base::File::FLAG_READ);
 
   subresource_filter::RulesetIndexer indexer;

mojo/edk/BUILD.gn

@@ -268,9 +268,8 @@ if (is_chromeos || is_linux || is_android) {
   }
 
   config("export_only_thunks_api") {
-    ldflags =
-        [ "-Wl,--version-script=" +
-          rebase_path("//mojo/edk/export_only_thunks_api.lst", root_build_dir) ]
+    ldflags = [ "-Wl,--version-script=" +
+                rebase_path("//mojo/edk/export_only_thunks_api.lst") ]
   }
 
   if (is_chromeos || is_linux) {

testing/libfuzzer/fuzzers/BUILD.gn

@@ -471,6 +471,7 @@ fuzzer_test("javascript_parser_proto_fuzzer") {
     "//v8:v8",
     "//v8:v8_libplatform",
   ]
+  include_dirs = [ "$root_build_dir/$target_gen_dir" ]
 }
 
 fuzzer_test("v8_fully_instrumented_fuzzer") {

third_party/blink/public/BUILD.gn

@@ -636,7 +636,7 @@ grit("resources") {
   html_min_css = "$blink_core_output_dir/html.css"
   grit_flags = [
     "-E",
-    "html_min_css=" + rebase_path(html_min_css, root_build_dir),
+    "html_min_css=" + rebase_path(html_min_css, "."),
   ]
   deps = [
     "//third_party/blink/renderer/core:make_minimized_css",

third_party/blink/public/blink_resources.grd

@@ -9,7 +9,7 @@
   <release seq="1">
     <includes>
       <!-- Source/core/css/html.css processed through minimize_css.py -->
-      <include name="IDR_UASTYLE_HTML_CSS" file="${cwd}/${html_min_css}" type="BINDATA" compress="gzip"/>
+      <include name="IDR_UASTYLE_HTML_CSS" file="${html_min_css}" type="BINDATA" compress="gzip"/>
       <include name="IDR_UASTYLE_QUIRKS_CSS" file="../renderer/core/css/quirks.css" type="BINDATA" compress="gzip"/>
       <include name="IDR_UASTYLE_VIEW_SOURCE_CSS" file="../renderer/core/css/view-source.css" type="BINDATA" compress="gzip"/>
       <include name="IDR_UASTYLE_THEME_CHROMIUM_ANDROID_CSS" file="../renderer/core/css/themeChromiumAndroid.css" type="BINDATA" compress="gzip"/>

tools/grit/grit/tool/build.py

@@ -148,7 +148,6 @@ are exported to translation interchange files (e.g. XMB files), etc.
     return 'A tool that builds RC files for compilation.'
 
   def Run(self, opts, args):
-    os.environ['cwd'] = os.getcwd()
     self.output_directory = '.'
     first_ids_file = None
     predetermined_ids_file = None