Enable about:nacl and correct symbol visibility for the plugin

After this change, if libppGoogleNaClPluginChrome.so is placed in the install
directory it correctly starts and attempts to create a subprocess.

BUG= https://code.google.com/p/nativeclient/issues/detail?id=3032
R=bradnelson@google.com, darin@chromium.org

Review URL: https://codereview.chromium.org/329853002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276724 0039d316-1c4b-4281-b951-d872f2087c98

build/common.gypi

@@ -4406,6 +4406,9 @@
                 ],
               }],
               ['_type=="shared_library" or _type=="loadable_module"', {
+                'ldflags!': [
+                  '-Wl,--exclude-libs=ALL',
+                ],
                 'ldflags': [
                   '-Wl,-shared,-Bsymbolic',
                 ],

chrome/browser/browser_resources.grd

@@ -87,7 +87,7 @@
         <include name="IDR_ABOUT_FLASH_JS" file="resources\about_flash.js" type="BINDATA" />
       </if>
       <include name="IDR_ABOUT_MEMORY_JS" file="resources\about_memory.js" flattenhtml="true" type="BINDATA" />
-      <if expr="not is_android">
+      <if expr="not disable_nacl">
         <include name="IDR_ABOUT_NACL_HTML" file="resources\about_nacl.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
         <include name="IDR_ABOUT_NACL_CSS" file="resources\about_nacl.css" flattenhtml="true" type="chrome_html" />
         <include name="IDR_ABOUT_NACL_JS" file="resources\about_nacl.js" type="BINDATA" />
@@ -225,7 +225,7 @@
       <if expr="chromeos">
         <include name="IDR_PLUGIN_DB_JSON" file="resources\plugin_metadata\plugins_chromeos.json" type="BINDATA" />
       </if>
-      <if expr="desktop_linux">
+      <if expr="desktop_linux or (is_android and enable_plugins)">
         <include name="IDR_PLUGIN_DB_JSON" file="resources\plugin_metadata\plugins_linux.json" type="BINDATA" />
       </if>
       <if expr="is_android">