dlopen the sonamed libs directly, like it has already been done for libGL.so.1,
as we don't want to Depend on the -dev packages for the .so files:
- libosmesa.so.6: was already available in Hardy
- libGLESv2.so.1 and libEGL.so.1: available only since Maverick

---
 app/gfx/gl/gl_implementation_linux.cc |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Index: src/app/gfx/gl/gl_implementation_linux.cc
===================================================================
--- src.orig/app/gfx/gl/gl_implementation_linux.cc
+++ src/app/gfx/gl/gl_implementation_linux.cc
@@ -40,19 +40,19 @@
     case kGLImplementationOSMesaGL: {
       FilePath module_path;
       if (!PathService::Get(base::DIR_MODULE, &module_path)) {
         LOG(ERROR) << "PathService::Get failed.";
         return false;
       }
 
       base::NativeLibrary library = base::LoadNativeLibrary(
-          module_path.Append("libosmesa.so"));
+          module_path.Append("libosmesa.so.6"));
       if (!library) {
-        VLOG(1) << "libosmesa.so not found";
+        VLOG(1) << "libosmesa.so.6 not found";
         return false;
       }
 
       GLGetProcAddressProc get_proc_address =
           reinterpret_cast<GLGetProcAddressProc>(
               base::GetFunctionPointerFromNativeLibrary(
                   library, "OSMesaGetProcAddress"));
       if (!get_proc_address) {
@@ -92,26 +92,26 @@
       SetGLImplementation(kGLImplementationDesktopGL);
 
       InitializeGLBindingsGL();
       InitializeGLBindingsGLX();
       break;
     }
     case kGLImplementationEGLGLES2: {
       base::NativeLibrary gles_library = base::LoadNativeLibrary(
-          FilePath("libGLESv2.so"));
+          FilePath("libGLESv2.so.2"));
       if (!gles_library) {
-        VLOG(1) << "libGLESv2.so not found";
+        VLOG(1) << "libGLESv2.so.2 not found";
         return false;
       }
 
       base::NativeLibrary egl_library = base::LoadNativeLibrary(
-          FilePath("libEGL.so"));
+          FilePath("libEGL.so.1"));
       if (!egl_library) {
-        VLOG(1) << "libEGL.so not found";
+        VLOG(1) << "libEGL.so.1 not found";
         base::UnloadNativeLibrary(gles_library);
         return false;
       }
 
       GLGetProcAddressProc get_proc_address =
           reinterpret_cast<GLGetProcAddressProc>(
               base::GetFunctionPointerFromNativeLibrary(
                   egl_library, "eglGetProcAddress"));