Renamed enable_printing and printing_mode in *.gyp* and .*gn* files.

chrome/chrome.gyp

Index: chrome/chrome.gyp
diff --git a/chrome/chrome.gyp b/chrome/chrome.gyp
index 3d7c4ff00e20d862c8e2b275f4a57567864ce4ae..405d6b4d2c4746aa1c696777b6a3be59576911e2 100644
--- a/chrome/chrome.gyp
+++ b/chrome/chrome.gyp
@@ -40,12 +40,12 @@
           '../third_party/WebKit/public/blink_devtools.gyp:blink_devtools_frontend_resources',
         ],
       }],
-      ['enable_printing!=0', {
+      ['enable_basic_printing==1 or enable_print_preview==1', {
         'chromium_browser_dependencies': [
           '../printing/printing.gyp:printing',
         ],
       }],
-      ['enable_printing==1', {
+      ['enable_print_preview==1', {
         'chromium_browser_dependencies': [
           'service',
         ],
@@ -675,7 +675,7 @@
         'chrome_browser_extensions.gypi',
       ],
     }],
-    ['enable_printing==1', {
+    ['enable_print_preview==1', {
       'targets': [
         {
           # GN version: //chrome/service