Remove USE_COLOR_PIPELINE and Associated Build Support

USE_COLOR_PIPELINE is no longer referenced.

BUG=1057239
TBR=sky@chromium.org
Flag removal.

Change-Id: I843d41bee9152dd0bb464e22ffcf5e1bd8f03375
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2088674
Commit-Queue: Robert Liao <robliao@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#747065}

chrome/browser/BUILD.gn

@@ -2259,7 +2259,6 @@ jumbo_static_library("browser") {
     "//ui/base:ui_data_pack",
     "//ui/base/idle",
     "//ui/base/ime",
-    "//ui/color:color_buildflags",
     "//ui/events:events_base",
     "//ui/gfx",
     "//ui/gfx/geometry",

chrome/browser/themes/browser_theme_pack.h

@@ -19,7 +19,6 @@
 #include "extensions/common/extension.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/layout.h"
-#include "ui/color/color_buildflags.h"
 #include "ui/gfx/color_utils.h"
 
 namespace base {

chrome/browser/themes/browser_theme_pack_unittest.cc

@@ -20,7 +20,6 @@
 #include "chrome/grit/theme_resources.h"
 #include "content/public/test/browser_task_environment.h"
 #include "testing/gtest/include/gtest/gtest.h"
-#include "ui/color/color_buildflags.h"
 #include "ui/color/color_mixer.h"
 #include "ui/color/color_provider.h"
 #include "ui/color/color_test_ids.h"

chrome/browser/ui/color/chrome_color_id.h

@@ -5,7 +5,6 @@
 #ifndef CHROME_BROWSER_UI_COLOR_CHROME_COLOR_ID_H_
 #define CHROME_BROWSER_UI_COLOR_CHROME_COLOR_ID_H_
 
-#include "ui/color/color_buildflags.h"
 #include "ui/color/color_id.h"
 
 // TODO(pkasting): Add the rest of the colors.

ui/base/ui_features.gni

@@ -13,11 +13,6 @@ declare_args() {
 
   # Whether the message center should be included for displaying notifications.
   enable_message_center = is_win || is_mac || is_linux
-
-  # Whether to compute UI colors with the color pipeline framework,
-  # instead of NativeTheme/ThemeService.
-  # TODO(http://crbug.com/1057239): Remove this flag.
-  use_color_pipeline = true
 }
 
 enable_hidpi = is_mac || is_win || is_linux || is_ios

ui/color/BUILD.gn

@@ -7,12 +7,6 @@ import("//build/config/jumbo.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 
-buildflag_header("color_buildflags") {
-  header = "color_buildflags.h"
-
-  flags = [ "USE_COLOR_PIPELINE=$use_color_pipeline" ]
-}
-
 source_set("color_headers") {
   sources = [
     "color_id.h",
@@ -23,7 +17,6 @@ source_set("color_headers") {
   ]
 
   public_deps = [
-    ":color_buildflags",
     "//base:base",
     "//skia:skia",
   ]

ui/color/color_id.h

@@ -7,7 +7,6 @@
 
 #include "build/build_config.h"
 #include "build/buildflag.h"
-#include "ui/color/color_buildflags.h"
 
 // clang-format off
 #define CROSS_PLATFORM_COLOR_IDS \

ui/color/color_provider.h

@@ -10,7 +10,6 @@
 
 #include "base/component_export.h"
 #include "third_party/skia/include/core/SkColor.h"
-#include "ui/color/color_buildflags.h"
 #include "ui/color/color_id.h"
 #include "ui/color/color_mixer.h"