Don't register JNI methods for the android_webview.

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index 79d3f986192bbaf837dd0ca5cf28c76735f82604..9d22e23d489ce05b3104349464d96786e480ae34 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -1780,6 +1780,9 @@
 
         # Copy it out one scope.
         'android_webview_build%': '<(android_webview_build)',
+
+        # Default android linker script for shared library exports.
+        'android_linker_script%': '<(SHARED_INTERMEDIATE_DIR)/android_exports.lst',
       }],  # OS=="android"
       ['embedded==1', {
         'use_system_fontconfig%': 0,
@@ -4350,7 +4353,7 @@
         },
         'target_conditions': [
           ['_type=="shared_library"', {
-           'product_extension': '<(android_product_extension)',
+            'product_extension': '<(android_product_extension)',
           }],
 
           # Settings for building device targets using Android's toolchain.
@@ -4416,8 +4419,6 @@
             'ldflags': [
               '-nostdlib',
               '-Wl,--no-undefined',
-              # Don't export symbols from statically linked libraries.
-              '-Wl,--exclude-libs=ALL',
             ],
             'libraries': [
               '-l<(android_stlport_library)',
@@ -4428,8 +4429,8 @@
               '-lm',
             ],
             'conditions': [
-              ['component=="shared_library"', {
-                'ldflags!': [
+              ['component=="static_library"', {
+                'ldflags': [
                   '-Wl,--exclude-libs=ALL',
                 ],
               }],