[Android] Fix remaining linker errors for components build

gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h

Index: gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
diff --git a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
index 67d726e5e6e3d68eb999f44d55aba735ca43cf18..2d607bf556c79a9ffb1527b6ba35727bd802b468 100644
--- a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
+++ b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
@@ -6,6 +6,7 @@
 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEXTURE_CHROMIUM_H_
 
 #include "gpu/command_buffer/service/gl_utils.h"
+#include "gpu/gpu_export.h"
 
 namespace gpu {
 namespace gles2 {
@@ -17,7 +18,7 @@ class GLES2Decoder;
 // This class encapsulates the resources required to implement the
 // GL_CHROMIUM_copy_texture extension.  The copy operation is performed
 // via a blit to a framebuffer object.
-class CopyTextureCHROMIUMResourceManager {
+class GPU_EXPORT CopyTextureCHROMIUMResourceManager {
  public:
   CopyTextureCHROMIUMResourceManager() : initialized_(false) {}