[Android] "Namespace" shared libraries for the component build

build/common.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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 3123 matching lines @@
         # by remoting.  Remoting is off, so it needn't built,
         # so forking it's deps seems like overkill.
         # But this variable need defined to properly run gyp.
         # A proper solution is to have an OS==android conditional
         # in third_party/libvpx/libvpx.gyp to define it.
         'libvpx_path': 'lib/linux/arm',
       },
       'target_defaults': {
         'variables': {
           'release_extra_cflags%': '',
+          'conditions': [
+            # If we're using the components build, append "cr" to all shared
+            # libraries to avoid naming collisions with android system library
+            # versions with the same name (e.g. skia, icu).
+            ['component=="shared_library"', {
+              'android_product_extension': 'cr.so',
+            }, {
+              'android_product_extension': 'so',
+            } ],
+          ],
         },
+        'target_conditions': [
+          ['_type=="shared_library"', {
+           'product_extension': '<(android_product_extension)',
+          }],
 
-        'target_conditions': [
           # Settings for building device targets using Android's toolchain.
           # These are based on the setup.mk file from the Android NDK.
           #
           # The NDK Android executable link step looks as follows:
           #  $LDFLAGS
           #  $(TARGET_CRTBEGIN_DYNAMIC_O)  <-- crtbegin.o
           #  $(PRIVATE_OBJECTS)            <-- The .o that we built
           #  $(PRIVATE_STATIC_LIBRARIES)   <-- The .a that we built
           #  $(TARGET_LIBGCC)              <-- libgcc.a
           #  $(PRIVATE_SHARED_LIBRARIES)   <-- The .so that we built
@@ skipping 1035 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }