crypto: enable components build for Linux

Expose some more API via CRYPTO_API and refactor gyp file.

(Reland of r92188.)

Review URL: http://codereview.chromium.org/7336009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@92212 0039d316-1c4b-4281-b951-d872f2087c98

crypto/crypto.gyp

@@ -9,6 +9,7 @@
   'targets': [
     {
       'target_name': 'crypto',
+      'type': '<(component)',
       'product_name': 'crcrypto',  # Avoid colliding with OpenSSL's libcrypto
       'dependencies': [
         '../base/base.gyp:base',
@@ -67,16 +68,13 @@
             '../third_party/nss/nss.gyp:nss',
           ],
         }],
-        [ 'OS == "win"', {
-          'type': '<(component)',
-        }, { # else OS != "win"
-          'type': 'static_library',
+        [ 'OS != "win"', {
           'sources!': [
             'capi_util.h',
             'capi_util.cc',
           ],
         }],
-        [ 'OS == "win" and component == "shared_library"', { 
+        [ 'component == "shared_library"', {
           'defines': [
             'CRYPTO_DLL',
             'CRYPTO_IMPLEMENTATION',

crypto/nss_util.h

@@ -28,7 +28,7 @@ namespace crypto {
 // EarlySetupForNSSInit performs lightweight setup which must occur before the
 // process goes multithreaded. This does not initialise NSS. For test, see
 // EnsureNSSInit.
-void EarlySetupForNSSInit();
+CRYPTO_API void EarlySetupForNSSInit();
 #endif
 
 // Initialize NRPR if it isn't already initialized.  This function is
@@ -55,7 +55,7 @@ void CRYPTO_API EnsureNSSInit();
 // Calling this method only has effect on Linux.
 //
 // WARNING: Use this with caution.
-void ForceNSSNoDBInit();
+CRYPTO_API void ForceNSSNoDBInit();
 
 // This methods is used to disable checks in NSS when used in a forked process.
 // NSS checks whether it is running a forked process to avoid problems when
@@ -66,7 +66,7 @@ void ForceNSSNoDBInit();
 // This method must be called before EnsureNSSInit() to take effect.
 //
 // WARNING: Use this with caution.
-void DisableNSSForkCheck();
+CRYPTO_API void DisableNSSForkCheck();
 
 // Load NSS library files. This function has no effect on Mac and Windows.
 // This loads the necessary NSS library files so that NSS can be initialized
@@ -75,7 +75,7 @@ void DisableNSSForkCheck();
 //
 // Note that this does not load libnssckbi.so which contains the root
 // certificates.
-void LoadNSSLibraries();
+CRYPTO_API void LoadNSSLibraries();
 
 // Check if the current NSS version is greater than or equals to |version|.
 // A sample version string is "3.12.3".
@@ -136,14 +136,14 @@ bool EnsureTPMTokenReady();
 
 // Convert a NSS PRTime value into a base::Time object.
 // We use a int64 instead of PRTime here to avoid depending on NSPR headers.
-base::Time PRTimeToBaseTime(int64 prtime);
+CRYPTO_API base::Time PRTimeToBaseTime(int64 prtime);
 
 #if defined(USE_NSS)
 // Exposed for unittests only.  |path| should be an existing directory under
 // which the DB files will be placed.  |description| is a user-visible name for
 // the DB, as a utf8 string, which will be truncated at 32 bytes.
-bool OpenTestNSSDB(const FilePath& path, const char* description);
-void CloseTestNSSDB();
+CRYPTO_API bool OpenTestNSSDB(const FilePath& path, const char* description);
+CRYPTO_API void CloseTestNSSDB();
 
 // NSS has a bug which can cause a deadlock or stall in some cases when writing
 // to the certDB and keyDB. It also has a bug which causes concurrent key pair
@@ -157,7 +157,7 @@ base::Lock* GetNSSWriteLock();
 
 // A helper class that acquires the NSS write Lock while the AutoNSSWriteLock
 // is in scope.
-class AutoNSSWriteLock {
+class CRYPTO_API AutoNSSWriteLock {
  public:
   AutoNSSWriteLock();
   ~AutoNSSWriteLock();

crypto/openpgp_symmetric_encryption.h

@@ -9,6 +9,7 @@
 #include <string>
 
 #include "base/string_piece.h"
+#include "crypto/crypto_api.h"
 
 namespace crypto {
 
@@ -19,7 +20,7 @@ namespace crypto {
 //
 // Likewise, the output of this can be decrypted on the command line with:
 //    gpg < input
-class OpenPGPSymmetricEncrytion {
+class CRYPTO_API OpenPGPSymmetricEncrytion {
  public:
   enum Result {
     OK,