Revert of Combine PDF plugin into the Chromium binary.

chrome/chrome_exe.gypi

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'targets': [
     {
       'target_name': 'chrome',
       'type': 'none',
       'dependencies': [ 'chrome_initial', ],
@@ skipping 170 matching lines @@
                 },
               ],
             }],
             # x11 build. Needed for chrome_main.cc initialization of libraries.
             ['use_x11==1', {
               'dependencies': [
                 '../build/linux/system.gyp:x11',
                 '../build/linux/system.gyp:xext',
               ],
             }],
-            ['enable_plugins==1', {
-              'dependencies': [
-                '../pdf/pdf.gyp:pdf',
-              ],
-            }],
           ],
           'sources': [
             'app/chrome_dll_resource.h',
             'app/chrome_main.cc',
             'app/chrome_main_delegate.cc',
             'app/chrome_main_delegate.h',
           ],
           'dependencies': [
             # On Linux, link the dependencies (libraries) that make up actual
             # Chromium functionality directly into the executable.
@@ skipping 218 matching lines @@
           ],  # postbuilds
         }, {  # OS != "mac"
           'conditions': [
             # TODO:  add a:
             #   'product_name': 'chromium'
             # whenever we convert the rest of the infrastructure
             # (buildbots etc.) to understand the branding gyp define.
             # NOTE: chrome/app/theme/chromium/BRANDING and
             # chrome/app/theme/google_chrome/BRANDING have the short name
             # "chrome" etc.; should we try to extract from there instead?
+
+            # CrOS does this in a separate build step.
+            ['OS=="linux" and chromeos==0 and linux_dump_symbols==1', {
+              'dependencies': [
+                '../pdf/pdf.gyp:pdf_linux_symbols',
+              ],
+            }], # OS=="linux" and chromeos==0 and linux_dump_symbols==1
+            # Android doesn't use pdfium.
+            ['OS!="android"', {
+              'dependencies': [
+                # On Mac, this is done in chrome_dll.gypi.
+                '../pdf/pdf.gyp:pdf',
+              ],
+            }], # OS=="android"
           ],
           'dependencies': [
             '../components/components.gyp:startup_metric_utils',
             'chrome_resources.gyp:packed_extra_resources',
             'chrome_resources.gyp:packed_resources',
             # Copy Flash Player files to PRODUCT_DIR if applicable. Let the .gyp
             # file decide what to do on a per-OS basis; on Mac, internal plugins
             # go inside the framework, so this dependency is in chrome_dll.gypi.
             '../third_party/adobe/flash/flash_player.gyp:flapper_binaries',
             # Copy CDM files to PRODUCT_DIR if applicable. Let the .gyp
@@ skipping 238 matching lines @@
               'dependencies': [
                 'chrome_nacl_win64',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }