Update build files to use webrtc_overrides in Chromium instead of overrides.

This re-lands https://codereview.webrtc.org/1354933002/

This is a part of moving the overrides to Chromium. See bug comment #65 for all steps.

Depends on https://codereview.chromium.org/1345873004/

BUG=chromium:468375

Review URL: https://codereview.webrtc.org/1345313004

Cr-Commit-Position: refs/heads/master@{#10115}
diff --git a/webrtc/BUILD.gn b/webrtc/BUILD.gn
index 5c3d9bc..ac14d7d 100644
--- a/webrtc/BUILD.gn
+++ b/webrtc/BUILD.gn
@@ -23,9 +23,9 @@
   if (build_with_chromium) {
     defines = [ "WEBRTC_CHROMIUM_BUILD" ]
     include_dirs = [
-      # overrides must be included first as that is the mechanism for
+      # The overrides must be included first as that is the mechanism for
       # selecting the override headers in Chromium.
-      "overrides",
+      "../webrtc_overrides",
 
       # Allow includes to be prefixed with webrtc/ in case it is not an
       # immediate subdirectory of the top-level.
diff --git a/webrtc/base/BUILD.gn b/webrtc/base/BUILD.gn
index dec6277..38beee9 100644
--- a/webrtc/base/BUILD.gn
+++ b/webrtc/base/BUILD.gn
@@ -315,18 +315,18 @@
 
   if (build_with_chromium) {
     sources += [
-      "../overrides/webrtc/base/logging.cc",
-      "../overrides/webrtc/base/logging.h",
+      "../../webrtc_overrides/webrtc/base/logging.cc",
+      "../../webrtc_overrides/webrtc/base/logging.h",
     ]
 
     deps += [ "..:webrtc_common" ]
 
     if (is_win) {
-      sources += [ "../overrides/webrtc/base/win32socketinit.cc" ]
+      sources += [ "../../webrtc_overrides/webrtc/base/win32socketinit.cc" ]
     }
 
     include_dirs = [
-      "../overrides",
+      "../../webrtc_overrides",
       "../../boringssl/src/include",
     ]
 
diff --git a/webrtc/base/base.gyp b/webrtc/base/base.gyp
index b111dac..78742e0 100644
--- a/webrtc/base/base.gyp
+++ b/webrtc/base/base.gyp
@@ -84,7 +84,7 @@
       'conditions': [
         ['build_with_chromium==1', {
           'include_dirs': [
-            '../overrides',
+            '../../webrtc_overrides',
           ],
           'sources!': [
             'basictypes.h',
@@ -349,9 +349,9 @@
         'worker.h',
         'x11windowpicker.cc',
         'x11windowpicker.h',
-        '../overrides/webrtc/base/logging.cc',
-        '../overrides/webrtc/base/logging.h',
-        '../overrides/webrtc/base/win32socketinit.cc',
+        '../../webrtc_overrides/webrtc/base/logging.cc',
+        '../../webrtc_overrides/webrtc/base/logging.h',
+        '../../webrtc_overrides/webrtc/base/win32socketinit.cc',
       ],
       # TODO(henrike): issue 3307, make rtc_base build without disabling
       # these flags.
@@ -379,7 +379,7 @@
       'conditions': [
         ['build_with_chromium==1', {
           'include_dirs': [
-            '../overrides',
+            '../../webrtc_overrides',
             '../../boringssl/src/include',
           ],
           'sources!': [
@@ -494,9 +494,9 @@
             }],
           ],
           'sources!': [
-            '../overrides/webrtc/base/win32socketinit.cc',
-            '../overrides/webrtc/base/logging.cc',
-            '../overrides/webrtc/base/logging.h',
+            '../../webrtc_overrides/webrtc/base/win32socketinit.cc',
+            '../../webrtc_overrides/webrtc/base/logging.cc',
+            '../../webrtc_overrides/webrtc/base/logging.h',
           ],
         }],
         ['OS == "android"', {
diff --git a/webrtc/build/common.gypi b/webrtc/build/common.gypi
index 7b17d43..4c2522e 100644
--- a/webrtc/build/common.gypi
+++ b/webrtc/build/common.gypi
@@ -223,7 +223,7 @@
           '<(DEPTH)',
           # The overrides must be included before the WebRTC root as that's the
           # mechanism for selecting the override headers in Chromium.
-          '../overrides',
+          '../../webrtc_overrides',
           # The WebRTC root is needed to allow includes in the WebRTC code base
           # to be prefixed with webrtc/.
           '../..',
@@ -404,9 +404,9 @@
             'WEBRTC_CHROMIUM_BUILD',
           ],
           'include_dirs': [
-            # overrides must be included first as that is the mechanism for
+            # The overrides must be included first as that is the mechanism for
             # selecting the override headers in Chromium.
-            '../overrides',
+            '../../webrtc_overrides',
             '../..',
           ],
         }, {